Exams Questions and Answers

Q:

The inner circumference of a circular race track, 14 m wide, is 440 m. Find radius of the outer circle

A) 44	B) 22
C) 33	D) 84

Answer & Explanation Answer: D) 84

Explanation:

Let inner radius be r metres. Then, 2 $π$ r = 440 ; r = $440 \times \frac{7}{44}$ = 70 m.

Radius of outer circle = (70 + 14) m = 84 m.

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Filed Under: Area
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35 28792

Q:

Artists are generally whimsical. Some of them are frustrated. Frustrated people are prone to be drug addicts.

Based on these statements which of the following conclusions is true?

A) All frustrated people are drug addicts	B) Frustrated people are whimsical
C) All drug addicts are artists	D) Some artists may be drug addicts

Answer & Explanation Answer: D) Some artists may be drug addicts

Explanation:

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Filed Under: Statement and Conclusions
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44 28782

Q:

A sequence $a, ax, {ax}^{2}, . . . . . ., {ax}^{n}$ , has odd number of terms. Then the median is

A) axn2+1	B) axn2-1
C) axn-1	D) axn2

Answer & Explanation Answer: D) axn2

Explanation:

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Filed Under: Probability
Exam Prep: Bank Exams

9 28778

Q:

The First Mechanical Computer Designed by Charles Babbage was called?

A) Super Computer	B) Abacus
C) Calculator	D) Analytical Engine

Answer & Explanation Answer: D) Analytical Engine

Explanation:

Computer was invented by Charles Babbage.

The First Mechanical Computer Designed by Charles Babbage, a British mathematician was called as Analytical Engine which resembles today's modern machines between 1833 and 1871.

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145 28763

Q:

If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of $\frac{a^{2} + b^{2} + c^{2}}{3}$ is :

A) M	B) 3 M^2
C) 2 (M/3)	D) M^2

Answer & Explanation Answer: B) 3 M^2

Explanation:

We have : ( a + b + c) / 3 = M or (a + b + c) = 3M.

Now. ${(a + b + c)}^{2} = {(3 M)}^{2} = 9 M^{2}$ .

$< = > a^{2} + b^{2} + c^{2} + 2 (a b + b c + c a) = 9 M^{2}$

$a^{2} + b^{2} + c^{2} = 9 M^{2}, (a b + b c + c a = 0)$

Required mean = $(\frac{a^{2} + b^{2} + c^{2}}{3}) = \frac{9 M^{2}}{3} = 3 M^{2}$ .

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Filed Under: Average
Exam Prep: AIEEE , Bank Exams , CAT
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35 28659

Q:

Smallest Taluk in Kerala State?

A) Kunnathur	B) Eranad
C) Palakkad	D) Alappuzha

Answer & Explanation Answer: A) Kunnathur

Explanation:

Kunnathur is the Smallest Taluk in Kerala State.

Smallest_Taluk_in_Kerala_State1557490637.jpg image

Taluk :

In Kerala, the administrative divisions below the district are called Taluk. There are 77 Taluks in Kerala State.

Eranad is the Largest Taluk in Kerala State.

Palakkad is the Largest District in Kerala State.

Alappuzha is the Smallest District in Kerala State.

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Filed Under: Indian Geography
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46 28650

Q:

Arrange the following words as per order in the dictionary

1. Follicle

2.Folk

3.Follow

4.Foliage

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

Answer & Explanation Answer: A) 4, 2, 1, 3

Explanation:

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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

2 28629

Q:

In the following question, select the missing number from the given series.

2187, 729, 243, 81, 27, ?

A) 10	B) 9
C) 13	D) 11

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