CDS Questions
If each of the dimensions of a rectangle is increased by 200%
If each of the dimensions of a rectangle is increased by 200%, the area is increased by
- 300%
- 400%
- 600%
- 800%
The rabbit population in community A increases at 25% per year
The rabbit population in community A increases at 25% per year while that in community B increases at 50% per year. If the present populations of A and B are equal, what will he the ratio of the number of rabbits in community B to that in community A after 2 years?
- 1.44
- 1.72
- 1.90
- 1.26
In a certain year, a school had 60% boys and 40% girls as students
In a certain year, a school had 60% boys and 40% girls as students. In the next five years the number of boys decreased by 10% and the number of girls increased by 10%. What is the change in total roll strength of the school in the five years?
- 3% increase
- 2% decrease
- No change
- 5% decrease
What is the number whose 20% is 30% of 40
What is the number whose 20% is 30% of 40?
- 50
- 60
- 80
- 90
The radius of the base of a right circular cone is increased by 15%
The radius of the base of a right circular cone is increased by 15% keeping the height fixed. The volume of the cone will be increased by
- 34.75%
- 32.25%
- 31%
- 30%
The price of an article is ₹ 25. After two successive cuts
The price of an article is ₹ 25. After two successive cuts by the same percentage, the price becomes ₹ 20.25. If each time the cut was x%, then
- x = 9
- x = 10
- x = 11
- x = 11.5
If m% of m + n% of n = 2% of (m × n)
If m% of m + n% of n = 2% of (m × n), then what percentage of m is n?
- 25%
- 50%
- 75%
- 100%
A man loses 20% of his money. After spending 25% of the remainder
A man loses 20% of his money. After spending 25% of the remainder, he has ₹ 480 left. What is the amount of money he originally had?
- ₹ 600
- ₹ 720
- ₹ 800
- ₹ 840
An employee is required to contribute 10% of his pay
An employee is required to contribute 10% of his pay to General Provident Fund. If he gets ₹13,500 as net pay in a month, then what is the monthly General Provident Fund contribution (assuming no other deductions)?
- ₹ 1215
- ₹ 1350
- ₹ 1500
- ₹ 1650
The tank-full petrol in Arun's motor-cycle lasts for 10 days
The tank-full petrol in Arun's motor-cycle lasts for 10 days. If he starts using 25% more everyday, how many days will the tank-full petrol last?
- 5
- 6
- 7
- 8
In a group of persons, 70% of the persons are male
In a group of persons, 70% of the persons are male and 30% of the persons are married. If two sevenths of males are married, what fraction of the females is single?
- 2/7
- 3/7
- 2/3
- 1/3
In a garrison, there was food for 1000 soldiers for one month
In a garrison, there was food for 1000 soldiers for one month. After 10 days, 1000 more soldiers joined the garrison. How long would the soldiers be able to carry on with the remaining food?
- 10 days
- 25 days
- 20 days
- 15 days
In a class of 45 students, a boy is ranked 20th
In a class of 45 students, a boy is ranked 20th. When two boys joined, his rank was dropped by one. What is his new rank from the end?
- 25th
- 26th
- 28th
- 27th
A student on her first 3 tests receive an average score of N points
A student on her first 3 tests receive an average score of N points. If she exceeds her previous average score by 20 points on her fourth test, then what is the average score for the first 4 tests?
- N + 10
- N + 4
- N + 5
- N + 20
The beginning of the universe had, of course, been discussed for a long time
The first line (S1) is fixed. Arrange the other four lines P, Q, R and S in a logical sequence.
- S1: The beginning of the universe had, of course, been discussed for a long time.
- P: One argument of such a beginning was the feeling that it was necessary to have a first cause to explain the existence of the universe.
- Q: He pointed out that civilization is progressing, and we remember who performed this deed or developed that technique;
- R: According to a number of early cosmologies in the Jewish/Christian/Muslim tradition, the universe started at a finite and not very distant time in the past.
- S: Another argument was put forward by St. Augustine in his book, The City of God.
- QRSP
- RPSQ
- PSQR
- SQPR
I was so eager not to disappoint my parents that I ran errands for anyone
The first line (S1) is fixed. Arrange the other four lines P, Q, R and S in a logical sequence.
- S1: I was so eager not to disappoint my parents that I ran errands for anyone.
- P: On the way a boy on a bicycle crashed into me and my left shoulder hurt so much that my eyes watered.
- Q: Only then did I cry
- R: But I still went and bought the maize, took it to my neighbours and then went home.
- S: One day my neighbours asked me to buy some maize for them from the bazaar.
- SPRQ
- PQSR
- QRPS
- RSQP
The celebrations of economic recovery in Washington may be as premature
The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labeled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. The celebrations of economic recovery in Washington may be as premature as that 'Mission Accomplished' banner hung on the USS Abraham Lincoln to hail the end of the Iraq war.
- B. Meanwhile, in the real world, the struggles of families and communities continue unabated.
- C. Washington responded to the favourable turn in economic news with enthusiasm.
- D. The celebrations and high-fives up and down Pennsylvania Avenue are not to be found beyond the Beltway.
- E. When the third quarter GDP showed growth of 7.2% and the monthly unemployment rate dipped to six per cent euphoria gripped the US capital.
- ECBDA
- ECABD
- CEDAB
- ACEDB
Experts such as Larry Burns, head of research at GM, reckon
The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labeled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. Experts such as Larry Burns, head of research at GM, reckon that only such a full hearted leap will allow the world to cope with the mass motorization that will one day come to China or India.
- B. But once hydrogen is being produced from biomass or extracted from underground coal or made from water, using nuclear or renewable electricity, the way will be open for a huge reduction in carbon emissions from the whole system.
- C. In theory, once all the bugs have been sorted out, fuel cells should deliver better total fuel economy than any existing engines.
- D. That is twice as good as the internal combustion engine, but only five percentage points better than a diesel hybrid.
- E. Allowing for the resources needed to extract hydrogen from hydrocarbon, oil coal or gas, the fuel cell has an efficiency of 30%.
- ACEBD
- CEDBA
- CEBDA
- AEDBC
This is now orthodoxy to which I subscribe - up to a point
The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labeled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. This is now orthodoxy to which I subscribe - up to a point.
- B. It emerged from the mathematics of chance and statistics.
- C. Therefore the risk is measurable and manageable.
- D. The fundamental concept: Prices are not predictable, but the mathematical laws of chance can describe their fluctuations.
- E. This is how what business schools now call modern finance was born.
- EBDCA
- DCBEA
- ABDCE
- ADCBE
If caught in the act, they were punished, not for the crime
The sentences given in below question, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of sentences from among the four given choices to construct a coherent paragraph.
- A. If caught in the act, they were punished, not for the crime, but for allowing themselves to be caught another lash of the whip.
- B. The bellicose Spartans sacrificed all the finer things in life for military expertise.
- C. Those fortunate enough to survive babyhood were taken away from their mothers at the age of seven to undergo rigorous military training.
- D. This consisted mainly of beatings and deprivations of all kinds like going around barefoot in winter, and worse, starvation so that they would be forced to steal food to survive.
- E. Male children were examined at birth by the city council and those deemed too weak to become soldiers were left to die of exposure.
- ECDAB
- BCDAE
- BECDA
- ECADB
Passivity is not, of course, universal
The sentences given in question, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. Passivity is not, of course, universal.
- B. In areas where there are no lords or laws, or in frontier zones where all men go armed, the attitude of the peasantry may well be different.
- C. So indeed it may be on the fringe of the unsubmissive.
- D. However, for most of the soil-bound peasants the problem is not whether to be normally passive or active, but when to pass from one state to another.
- E. This depends on an assessment of the political situation.
- BEDAC
- ABCDE
- EDBAC
- CDABE
Branded disposable diapers are available at many supermarkets
The sentences given in question, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. Branded disposable diapers are available at many supermarkets and drug stores.
- B. If one supermarket sets a higher price for a diaper, customers may buy that brand elsewhere.
- C. By contrast, the demand for private-label products may be less price sensitive since it is available only at a corresponding supermarket chain.
- D. So the demand for branded diapers at any particular store may be quite price sensitive.
- E. For instance, only SavOn Drugs stores sell SavOn Drugs diapers.
- F. Then stores should set a higher incremental margin percentage for private label diapers.
- ABCDEF
- AEDBCF
- ABCEDF
- ADBCEF
As officials, their vision of a country shouldn't run too far beyond
The sentences given in question, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. As officials, their vision of a country shouldn't run too far beyond that of the local people with whom they have to deal.
- B. Ambassadors have to choose their words.
- C. To say what they feel they have to say, they appear to be denying or ignoring part of what they know.
- D. So, with ambassadors as with other expatriates in black Africa, there appears at a first meeting a kind of ambivalence.
- E. They do a specialized job and it is necessary for them to live ceremonial lives.
- BEADC
- BCEDA
- BEDAC
- BCDEA
He felt justified in bypassing Congress altogether on a variety of moves
The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labeled with a letter. Choose the most logical order of sentence from among the given choices.
- A. He felt justified in bypassing Congress altogether on a variety of moves.
- B. At times he was fighting the entire Congress.
- C. Bush felt he had a mission to restore power to the presidency.
- D. Bush was not fighting just the democrats.
- E. Representatives democracy is a messy business, and a CEO of the white House does not like a legislature of second guessers and time wasters.
- CAEDB
- CEADB
- DBAEC
- ECDBA
In America, highly educated women, who are in stronger position
There are five sentences. The sentence labelled A is in its correct place. The four that follow are labelled B, C, D and E, and need to be arranged in the logical order to form a coherent paragraph. From the given options, choose the most appropriate option.
- A. In America, highly educated women, who are in stronger position in the labour market than less qualified ones, have higher rates of marriage than other groups.
- B. Some work supports the Becker thesis, and some appears to contradict it.
- C. And, as with crime, it is equally inconclusive.
- D. But regardless of the conclusion of any particular piece of work, it is hard to establish convincing connections between family changes and economic factors using conventional approaches.
- E. Indeed, just as with crime, an enormous academic literature exists on the validity of the pure economic approach to the evolution of family structures.
- BCDE
- BDCE
- DBEC
- ECBD
Call it the third wave sweeping the Indian media
The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labeled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.
- A. Call it the third wave sweeping the Indian media.
- B. Now they are starring in a new role, as suave dealmakers who are in a hurry to strike alliances and agreements.
- C. Look around and you will find a host of deals that have been inked or are ready to be finalized.
- D. Then the media barons wrested back control from their editors, and turned marketing warriors with the brand as their missile.
- E. The first came with those magnificent men in their mahogany chambers who took on the world with their mighty fountain pens.
- ACBED
- CEBDA
- AEDBC
- CAEBD
Which one of the following is an example of chemical change
Which one of the following is an example of chemical change?
- Burning of paper
- Magnetization of soft iron
- dissolution of cane sugar in water
- Preparation of ice cubes from water
Plants contain a variety of sterols like stigmasterol, ergosterol, sitosterol
Plants contain a variety of sterols like stigmasterol, ergosterol, sitosterol etc., Which very closely resemble cholesterol. These plant sterols are referred as:
- Phytosterols
- Calciferols
- Ergocalciferols
- Lumisterols
In artificial insemination (AI) process, which of the following is introduced
In artificial insemination (AI) process, which of the following is/are introduced into the uterus of the female?
- Egg only
- Fertilized egg
- Sperm only
- Egg and sperm
Which one of the following vitamins has a role in blood clotting
Which one of the following vitamins has a role in blood clotting?
- Vitamin A
- Vitamin B
- Vitamin D
- Vitamin K
Glucose is a source of energy. Which one of the following types of molecule is Glucose
Glucose is a source of energy. Which one of the following types of molecule is Glucose?
- Carbohydrate
- Protein
- Fat
- Nucleic acid
The living content of cell is called protoplasm. It is composed of
The living content of cell is called protoplasm. It is composed of:
- Cytoplasm only
- Cytoplasm and nucleoplasm
- Nucleoplasm only
- Cytoplasm, nucleoplasm and other organelles
Which one of the following pairs of vitamin and diseases are correctly matched
Which one of the following pairs of vitamin and diseases is/are correctly matched?
- Vitamin A : Rickets
- Vitamin B1 : Beriberi
- Vitamin C : Scurvy
Select the correct answer using the code given below:
- 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
A myopic person has a power of -1.25 Dioptre. What is the focal length
A myopic person has a power of -1.25 Dioptre. What is the focal length and nature of his lens?
- 50 cm and convex lens
- 80 cm and convex lens
- 50 cm and concave lens
- 80 cm and concave lens
A piece of ice, 100 g in mass is kept at 0°C. The amount of heat it requires to melt
A piece of ice, 100 g in mass is kept at 0°C. The amount of heat it requires to melt at 0°C is (take latent heat of melting of ice to be 333.6 J/g):
- 750.6 J
- 83.4 J
- 33360 J
- 3.336 J
A person rings a metallic bell near a strong concrete wall. He hears the echo after 0.3 s
A person rings a metallic bell near a strong concrete wall. He hears the echo after 0.3 s. If the sound moves with a speed of 340 m/s, how far is the wall from him?
- 102 m
- 11 m
- 51 m
- 30 m
The SI unit of mechanical power is
The SI unit of mechanical power is:
- Joule
- Watt
- Newton-second
- Joule-second
Two system are said to be in thermal equilibrium if and only if
Two system are said to be in thermal equilibrium if and only if:
- there can be a heat flow between them even are at different temperatures
- there cannot be a heat flow between them even if they are at different temperatures
- there is no heat flow between them
- their temperature are slightly different
The mass number of an atom is determined by
The mass number of an atom is determined by
- the number of protons only
- adding the number of neutrons and number of electrons
- adding the number of protons and number of electrons
- adding the number of neutrons and number of protons
Which of the following pairs represents isoelectronic ions
Which of the following pairs represents isoelectronic ions
- Mg2+, Ca2+
- Na+, K+
- K+, Mg2+
- Ca2+, S2-
Which one among the following contains the most neutrons
Which one among the following contains the most neutrons?
- 6129Cu
- 5926Fe
- 6030Zn2+
- 6130Zn
Two atoms are said to be isotopes if
Two atoms are said to be isotopes if
- they have the same atomic number but different mass numbers
- the sum of the number of protons and neutrons is the same, but the number of protons is different
- they have the same number of neutrons but different modes of radioactive decay
- they have the same number of neutrons but different mass numbers
The number of aluminium ions present in 54 g of aluminium
The number of aluminium ions present in 54 g of aluminium (atomic weight 27) is
- 2
- 18
- 1.2 x 1024
- 1.1 x 1024
Which one of the following is the correct electronic configuration of chlorine
Which one of the following is the correct electronic configuration of chlorine
- 2, 8, 8
- 2, 7, 8
- 7, 8, 2
- 2, 8, 7
The most of the mass of the atom can be found in
The most of the mass of the atom can be found in
- nucleus
- electron cloud
- charges
- electrons
The number of valence electrons in the O2- ion is
The number of valence electrons in the O2- ion is
- 4
- 6
- 8
- 10
How many grams of MgCO3 contain 24.00 g of oxygen
How many grams of MgCO3 contain 24.00 g of oxygen? (The molar mass of MgCO3 is 84.30 g mol–1)
- 42.15 g
- 84.30 g
- 126.00 g
- 154.00 g
Splitting of a beam of white light into its constituent colours
Which one of the following processes explains the splitting of a beam of white light into its constituent colours?
- Polarization
- Dispersion
- Diffraction
- Reflection
A real image
Consider the following statements:
A real image
- can be formed on a screen
- is always magnified and inverted
Which of the statements given above is/are correct
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
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