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Q:

A runs $1 \frac{2}{3}$ times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?

A) 200 m	B) 300m
C) 270m	D) 160m

Answer & Explanation Answer: A) 200 m

Explanation:

Ratio of the speeds of A and B =5 : 1 = 5 :3

Thus, in race of 5 m, A gains 2 m over B.

2 m are gained by A in a race of 5 m.

80 m will be gained by A in race of $(\frac{5}{2} * 80)$ m =200m

=> Winning post is 200 m away from the starting point.

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Filed Under: Races and Games

Q:

The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is:

A) 3	B) 4
C) 5	D) 6

Answer & Explanation Answer: B) 4

Explanation:

$P {(1 + \frac{20}{100})}^{n} > 2 P \Leftrightarrow {(\frac{6}{5})}^{n} > 2$

$(\frac{6}{5} \times \frac{6}{5} \times \frac{6}{5} \times \frac{6}{5}) > 2$

so, answer is 4 years

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

A gas is found to have the formula . Its vapour density is 70.The value of n must be

A) 5	B) 4
C) 9	D) 6

Answer & Explanation Answer: A) 5

Explanation:

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Filed Under: Chemistry

Q:

The present worth of a bill due sometime hence is Rs. 1100 and the true discount on the bill is Rs. 110. Find the banker's discount and the banker's gain.

A) Rs.145	B) Rs.136
C) Rs.121	D) Rs.112

Answer & Explanation Answer: C) Rs.121

Explanation:

T.D. =Ö(P.W.*B.G)

B.G. =(T.D.)2/ P.W.

= Rs.[(110x110)/ 1100]

= Rs. 11.

B.D.= (T.D. + B.G.) = Rs. (110 + 11) = Rs. 121.

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Filed Under: Banker's Discount

Q:

The banker's discount on Rs. 1800 at 12% per annum is equal to the true discount on Rs. 1872 for the same time at the same rate. Find the time.

A) 7 months	B) 6 months
C) 3 months	D) 4 months

Answer & Explanation Answer: D) 4 months

Explanation:

S.I. on Rs. 1800 = T.D. on Rs. 1872.

P.W. of Rs. 1872 is Rs. 1800.

Rs. 72 is S.I. on Rs. 1800 at 12%.

Time =[(100 x 72)/ (12x1800)]year

=1/3year = 4 months.

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Filed Under: Banker's Discount

Q:

The Present worth of Rs.2310 due $2 \frac{1}{2}$ years hence ,the rate of interest being 15% per annum, is :

A) Rs.1440	B) Rs.1750
C) Rs.1680	D) Rs.1840

Answer & Explanation Answer: C) Rs.1680

Explanation:

$P . W = R s . (\frac{100 \times 2310}{100 + (15 \times \frac{5}{2})})$ = Rs.1680

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Filed Under: True Discount

Q:

The difference between Simple Interest and True Discount on a certain sum of money for 6 months at $12 \frac{1}{2}$ % per annum is Rs 25. Find the sum.

A) Rs.6800	B) Rs.6500
C) Rs.6000	D) Rs.6200

Answer & Explanation Answer: A) Rs.6800

Explanation:

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Filed Under: True Discount

Q:

On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb, 2004?

A) Tuesday	B) Monday
C) Sunday	D) Wednesday

Answer & Explanation Answer: C) Sunday

Explanation:

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Filed Under: Calendar

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