Q:

Two cubes have their volumes in the ratio 1 : 27. Find the ratio of their surface areas.

A) 2:9	B) 3:9
C) 1:9	D) 4:9

Answer & Explanation Answer: C) 1:9

Explanation:

Let their edges be a and b. Then,

a3/b3 = 1/27 (or) (a/b)3 = (1/3)3 (or) (a/b) = (1/3).

\Ratio of their surface area = 6a2/6b2 = a2/b2 = (a/b)2 = 1/9, i.e. 1:9.

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Filed Under: Quantitative Aptitude - Arithmetic Ability

31 14852

Q:

The nitrogen atom has 7 protons and 7 electrons,The nitride ion will have

A) 10 protons and 7 electrons	B) 7 protons and 10 electrons
C) 4 protons and 7 electrons	D) 4 protons and 10 electrons

Answer & Explanation Answer: B) 7 protons and 10 electrons

Explanation:

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Filed Under: Chemistry

42 14838

Q:

Manipur has common boundaries with the group of states of

A) Meghalaya, Mizoram and Tripura	B) Nagaland, Mizoram and Meghalaya
C) Nagaland, Assam and Mizoram	D) Nagaland, Meghalaya and Tripura

Answer & Explanation Answer: C) Nagaland, Assam and Mizoram

Explanation:

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Filed Under: Indian Geography

53 14834

Q:

A Computer works on a _______ number system

A) binary	B) octal
C) decimal	D) hexadecimal

Answer & Explanation Answer: A) binary

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams

49 14832

Q:

Civil equality implies

A) Equality before law	B) Equality of opportunity
C) Equal distribution of wealth	D) Equal right to participate in the affairs of the State

Answer & Explanation Answer: A) Equality before law

Explanation:

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Filed Under: Indian Politics

34 14827

Q:

Pieces of camphor placed on water move about rapidly. This is because of

A) diffusion	B) viscosity
C) surface tension	D) capillarity

Answer & Explanation Answer: C) surface tension

Explanation:

The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood. The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short.

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Filed Under: Physics

66 14824

Q:

Select the related word/letters/numbers from the given alternatives:

BDCE : GIHJ :: QSRT : ?

A) VWXY	B) UWMX
C) VXWY	D) UWNX

Answer & Explanation Answer: C) VXWY

Explanation:

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Filed Under: Verbal Reasoning - Mental Ability

0 14820

Q:

Proxy servers have two main purposes :

1. Improve Performance (and)

2. is ______ ?

A) Transmit Request	B) Decrease Requests
C) Increase Requests	D) Filter Requests

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