Exams Questions and Answers

Q:

If log 2 = 0.30103, Find the number of digits in 2⁵⁶ is

A) 17	B) 19
C) 23	D) 25

Answer & Explanation Answer: A) 17

Explanation:

$\log (2^{56})$ =56*0.30103 =16.85768.

Its characteristics is 16.

Hence, the number of digits in $2^{56}$ is 17.

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Filed Under: Logarithms
Exam Prep: Bank Exams
Job Role: Bank PO

121 59301

Q:

Interchanging which two signs will make the following equation correct?

42 / 4 + 2 - 3 x 5 = 29

A) + and x	B) + and -
C) - and x	D) / and +

Answer & Explanation Answer: D) / and +

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

0 59285

Q:

Based on the analogy given, find the missing pair from the given options.

5 : 35 : ___ : ____

A) 11 : 55	B) 7 : 77
C) 3 : 24	D) 9 : 45

Answer & Explanation Answer: B) 7 : 77

Explanation:

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Filed Under: Analogy
Exam Prep: Bank Exams

2 59231

Q:

Find the Next Number in the given number series?

3, 10.5, 36.75, 128.625, ?

A) 450.187	B) 442.151
C) 441.231	D) 456.852

Answer & Explanation Answer: A) 450.187

Explanation:

Pattern is

3

3 x 3.5 = 10.5

10.5 x 3.5 = 36.75

36.75 x 3.5 = 128.625

128.625 x 3.5 = 450.187

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Filed Under: Odd Man Out
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

9 59128

Q:

If the radius of a circle is decreased by 50%, find the percentage decrease in its area.

A) 55%	B) 65%
C) 75%	D) 85%

Answer & Explanation Answer: C) 75%

Explanation:

Let original radius = R.

New radius = $\frac{50}{100} R$ = $\frac{50}{100} R$

Original area = $\frac{R}{2}$ and new area = ${πR}^{2}$

$\frac{3 {πR}^{2}}{4} * \frac{1}{{πR}^{2}} * 100$

Decrease in area = $π {(\frac{R}{2})}^{2} = \frac{{πR}^{2}}{4}$ = 75%

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

147 59091

Q:

Transpiration in plants does helps in which of the following?

A) Absorption and upward movement of water	B) Absorption and upward movement of minerals dissolved in water
C) Temperature regulation	D) All options are correct

Answer & Explanation Answer: D) All options are correct

Explanation:

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Filed Under: General Science
Exam Prep: Bank Exams

0 58898

Q:

Select the related letters from the given alternatives.

DFH : GIK :: MOQ : ?

A) PRT	B) OQS
C) QSU	D) LNP

Answer & Explanation Answer: A) PRT

Explanation:

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Filed Under: Analogy
Exam Prep: Bank Exams

0 58898

Q:

Which is not a green house gas in the following?

A) Ozone	B) Nitrous oxide
C) Water vapour	D) Hydrogen

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