Exams Questions and Answers

Q:

Select the odd term out of the following.

0.02, 0.020, 2/100, 0.002

A) 0.002	B) 0.020
C) 0.02	D) 2/100

Answer & Explanation Answer: A) 0.002

Explanation:

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Exam Prep: Bank Exams

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Q:

A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated quarter past 4 o'clock, the true time is:

A) 4pm	B) 5pm
C) 6pm	D) 7pm

Answer & Explanation Answer: A) 4pm

Explanation:

Time from 7 am to 4.15 pm = 9 hrs 15 min = $\frac{37}{4}$ hrs

3 min. 5 sec. of this clock = 3 min. of the correct clock.

Now 3min.5sec. is $\frac{37}{720}$ hrs of this clock = 3 min.is $\frac{1}{20}$ hrs of the correct clock

$\frac{37}{4}$ hrs of clock = $(\frac{1}{20} \times \frac{720}{37} \times \frac{37}{4})$ hrs of the correct clock.

= 9 hrs of the correct clock.

$\therefore$ The correct time is 9 hrs after 7 am. i.e., 4 pm.

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Filed Under: Clocks
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Q:

Select the number missing from the given series.

3, 12, ___, 21612

A) 147	B) 149
C) 200	D) 150

Answer & Explanation Answer: A) 147

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams , CAT

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Q:

The area of a rectangle is 460 square metres. If the length is 15% more than the breadth, what is the breadth of the rectangular field?

A) 20 m	B) 30 m
C) 40 m	D) 50 m

Answer & Explanation Answer: A) 20 m

Explanation:

Let breadth=x meters. Then, Length = $\frac{115 x}{100}$ meters

Given that, $x \times \frac{115 x}{100} = 460$

=> x = 20

Breadth = 20

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Filed Under: Area
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Q:

If 3!5 = 30, 6!1 = 12 and 5!8 = 80, then find the value of 2!2 = ?

A) 28	B) 12
C) 8	D) 32

Answer & Explanation Answer: C) 8

Explanation:

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Filed Under: Coding and Decoding
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Q:

Select the figure that does NOT belong in the following group.

A) B	B) D
C) C	D) A

Answer & Explanation Answer: C) C

Explanation:

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Filed Under: Odd Man Out
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Q:

If the mathematical operator, '+' means 'x', '/' means '-', '-' means '+', and 'x' means '/', then the value of 11 +14 x7- 5 / 29 is

A) -5	B) -12
C) -7	D) -2

Answer & Explanation Answer: D) -2

Explanation:

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Filed Under: Coding and Decoding
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Q:

The difference between the compound interest and the simple interest accrued on an amount of Rs. 18,000 in 2 years was Rs. 405. What was the rate of interest p.c.p.a. ?

A) 12%	B) 13%
C) 14%	D) 15%

Answer & Explanation Answer: D) 15%

Explanation:

Let the rate be R% p.a. Then,

$[1800 {(1 + \frac{R}{100})}^{2} - 1800] - (\frac{1800 * R * 2}{100}) = 405$

$1800 [\frac{{(100 + R)}^{2}}{10000} - 1 - \frac{2 R}{100}] = 405$

$1800 [\frac{{(100 + R)}^{2} - 10000 - 200 R}{10000}] = 405$

$\Leftrightarrow$

$\frac{9}{5} * R^{2} = 405 \Leftrightarrow R^{2} = (\frac{405 * 5}{9}) = 225 \Leftrightarrow R = 15$
Rate = 15%.

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Filed Under: Compound Interest
Exam Prep: Bank Exams
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