Exams Questions and Answers

Q:

What should be the maximum value of B in the following equation?
8A9 – 6B2 + 4C6 = 723

A) 4	B) 1
C) 5	D) 7

Answer & Explanation Answer: D) 7

Explanation:

1 1
8 A 9
+ 4 C 6
- 6 B 2
7 2 3
We may represent the given sum, as shown below:

1 + A + C - B = 12
A + C - B = 11

Now,giving the maximum values to A and C, i.e.

A = 9 and C = 9, we get B = 7.

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Filed Under: Numbers
Exam Prep: CAT
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Q:

Which of the following became widespread during the 1980's?

A) Internet	B) Radio
C) Cable television	D) All the above

Answer & Explanation Answer: C) Cable television

Explanation:

Cable television or cable TV became widespread during the 1980's.

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Filed Under: Indian History
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Q:

As per the recommendations of the 12th Finance Commission, what will be the Share of the State Govts in total shareable proceeds of Central taxes?

A) 15%	B) 20.5%
C) 22%	D) 30.5%

Answer & Explanation Answer: D) 30.5%

Explanation:

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Q:

In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there ?

A) 205	B) 194
C) 209	D) 159

Answer & Explanation Answer: C) 209

Explanation:

We may have (1 boy and 3 girls)or(2boys and 2 girls)or(3 boys and 1 girl)or(4 boys).

Required number of ways = ( ${}^{6}C_{1} \times {}^{4}C_{3}$ ) + $({}^{6}C_{2} \times {}^{4}C_{2})$ + ( ${}^{6}C_{3} \times {}^{4}C_{1}$ ) + ( ${}^{6}C_{4}$ )

= (24+90+80+15)

= 209.

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Filed Under: Permutations and Combinations
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Q:

The transport phenomenon occurs only in _____ state of a gas and is ______

A) Non-equilibrium, irreversible	B) Non-equilibrium, reversible
C) equilibrium, irreversible	D) equilibrium, reversible

Answer & Explanation Answer: C) equilibrium, irreversible

Explanation:

The transport phenomenon occurs only in equilibrium state of a gas and is irreversible.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Energy is measured in units called

A) Newtons	B) Watts
C) Joules	D) Ohm/mtr

Answer & Explanation Answer: C) Joules

Explanation:

Energy is measured in units called Joules.

Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.

1 Joule = 10⁷ ergs or 0.7377 foot-pounds.

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Filed Under: General Science
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Q:

Who gave the slogan 'Back to the Vedas (Vedo ki aur lauto)'?

A) Guru Nanank Dev Ji	B) Dayanand Saraswati
C) Swami Vivekananda	D) Raja Ram Mohan Roy

Answer & Explanation Answer: B) Dayanand Saraswati

Explanation:

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Filed Under: Indian History
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Q:

Which of the following is not a monosaccharide?

A) Fructose	B) Glucose
C) Galactose	D) Sucrose

Answer & Explanation Answer: D) Sucrose

Explanation:

Sucrose is not a monosaccharide.

Monosaccharides are simple carbohydrates molecules that cannot be broken down into smaller molecules of other carbohydrates.

Glucose, galactose and fructose are examples of Monosaccharides.

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Filed Under: Chemistry
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