Common Admission Test (CAT) Questions and Answers with Explanation

Q:

Which statement about the Supreme Court is true?

A) The court hears all cases for which two or more justices agree that the case has merit.	B) The court decides which cases it will hear. In deciding cases, the chief justice’s vote counts as two votes.
C) Every case appealed to the Supreme Court is ruled upon by the court.	D) The court can hear only cases that have worked their way up from local courts.

Answer & Explanation Answer: B) The court decides which cases it will hear. In deciding cases, the chief justice’s vote counts as two votes.

Explanation:

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Q:

An alloy contains gold and silver in the ratio 5 : 8 and another alloy contains gold and silver in the ratio 5 : 3. If equal amount of both the alloys are melted together, then the ratio of gold and silver in the resulting alloy is ?

A) 113/108	B) 105/103
C) 108/115	D) 103/113

Answer & Explanation Answer: B) 105/103

Explanation:

As given equal amounts of alloys are melted, let it be 1 kg.

Required ratio of gold and silver = $\frac{\frac{5}{13} + \frac{5}{8}}{\frac{8}{13} + \frac{3}{8}} = \frac{105}{103} .$

Hence, ratio of gold and silver in the resulting alloy = 105/103.

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Q:

The cultivation of crops in regions with an annual rainfall of 750mm is called as ____.

A) Wet Farming	B) Intensive Farming
C) Rain Fed Farming	D) Dry Land Farming

Answer & Explanation Answer: D) Dry Land Farming

Explanation:

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Q:

A sector of 120, cut out from a circle, has an area of $\frac{66}{7} c m^{2}$ . Find the radius of the circle ?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: C) 3

Explanation:

Let the radius of the circle be r cm. Then,

$\frac{120}{360} {πr}^{2} = \frac{66}{7}$

$r^{2} = \frac{66}{7} * \frac{7}{22} * 3$

r=3.

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Q:

Where should a boat compass be mounted?

A) near magnet	B) near iron
C) away from electrical wiring	D) All the above

Answer & Explanation Answer: C) away from electrical wiring

Explanation:

A compass, which is used to assist in navigation, is an instrument that shows magnetic north. You must apply a correction to determine the direction of true north. The ability to steer a boat by a compass is useful if land is out of sight, visibility is reduced, or the boat operator is disoriented.

Mount a boat compass away from iron, magnets, and electrical wiring and equipment.

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Q:

Guess the Missing Letter in the Letter Puzzle ?

19959334_1361674073939693_2011643913464641851_n1500356636.jpg image

A) L	B) M
C) N	D) O

Answer & Explanation Answer: A) L

Explanation:

The Logic followed in the given puzzle is :

L x P = 12 x 16 = 192 (Alphabetical numbers of L & P)

P x T = 16 x 20 = 320 (Alphabetical numbers of P & T)

Similarly, K x () = 132 => () = 132/11 = 12 => L

Hence, the missing letter is L

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Q:

In very cold countries alcohol is used as a thermometric liquid because

A) alcohol is a poor conductor of heat	B) alcohol can be coloured for its level to be seen easily
C) its freezing point is very low	D) it will not stick to the glass tube

Answer & Explanation Answer: C) its freezing point is very low

Explanation:

Alcohol has a freezing point as low as $- 117^{o} C$ . So it won't freeze even in very cold countries.

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Q:

What comes down but never goes up?

Answer

Rain is what only comes down but never goes up.

Workspace

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