Q:

A company reduces his employee in the ratio 14 : 12 andincreases their wages in the ratio 16:18. Determine whetherthe bill of wages increases or not and in what ratio

A) Decreases, 28: 27 B) Increases, 27:28
C) Decreases, 29:28 D) Increases, 28:29
 
Answer & Explanation Answer: A) Decreases, 28: 27

Explanation:

Let the initial employee be 14a and final employee be 12a

similarly initial wage is 16b and final wage be 18b

Total initial wage = 14a × 16b = 224ab,

total final wage= 12a × 18b = 216ab

So clearly wages decreases and ratio = 224ab: 216ab= 28 : 27

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Filed Under: Ratios and Proportions

0 1839
Q:

Three pipe P, Q and R can fill a tank in 12 minutes, 18 minutesand 24 minutes respectively. The pipe R is closed 12 minutesbefore the tank is filled. In what time the tank is full?

A) 8 (5/13) hrs B) 8 (4/13) hrs
C) 7 (4/13) hrs D) 8 (6/13) hrs
 
Answer & Explanation Answer: B) 8 (4/13) hrs

Explanation:
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Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

3 1277
Q:

A and B can do a piece of work in 24 and 30 daysrespectively. Both started the work and worked for 6 days.Then B leaves the work and C joins and the remaining workis completed by A and C together in 11 days. Find the days in which C alone can do the work

A) 80 B) 100
C) 120 D) 130
 
Answer & Explanation Answer: C) 120

Explanation:

(1/24 + 1/30) x 6 + (1/24 + 1/C) x 11 = 1

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Filed Under: Time and Work
Exam Prep: Bank Exams

0 1470
Q:

James present age is 2/7th of his fathers present age. James brother is three year older to Jame. The respective ratio between present ages of James father and James brother is 14:5. What is the present age of James?

A) 12 years B) 13 years
C) 14 years D) 15 years
 
Answer & Explanation Answer: A) 12 years

Explanation:

James father present age = x
James age = 2/7 x
James brother age = 2x/7 + 3
x = 42
=> 2x/7 = 12 yrs

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

4 2504
Q:

Ashok can row upstream at 8 kmph and downstream at 12kmph.What is the speed of the stream ?

A) 6 km/hr B) 3 km/hr
C) 2 km/hr D) 4.5 km/hr
 
Answer & Explanation Answer: C) 2 km/hr

Explanation:

If the speed downstream is a kmph and the speedup stream is b kmph then
Speed of the stream = 1/2 x (a–b) kmph
Speed downstream a = 12kmph
Speed upstream b = 8 kmph
Speed of the stream = 1/2 x (a–b) = 1/2 x (12–8)= 4/2 = 2 kmph

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

7 2160
Q:

An inspector is 228 meter behind the thief. The inspectorruns 42 meters and the thief runs 30 meters in a minute. Inwhat time will the inspector catch the thief?

A) 19 minutes B) 20 minutes
C) 18 minutes D) 21 minutes
 
Answer & Explanation Answer: A) 19 minutes

Explanation:

Inspector s 228 meter behind the thief and now aftersome x distance he will catch the thief. So
x/30 = 228+x/42 => x = 570 m
(228 + 570) / 42 = 19 min

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Filed Under: Time and Distance
Exam Prep: Bank Exams

3 3008
Q:

Deepak found that he had made a loss of 10% while selling his smartphone. He also found that had he sold it for ` 50more, he would have made a profit of 5%. The initial loss was what percentage of the profit earned, had he sold the smartphone for a 5% profit ?

A) 100% B) 200%
C) 75% D) 85%
 
Answer & Explanation Answer: B) 200%

Explanation:

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Filed Under: Profit and Loss

2 2066
Q:

The difference between compound interest compoundedevery 6 months and simple interest after 2 years is 248.10.The rate of interest is 10 percent. Find the sum

A) 12000 B) 14000
C) 16000 D) 18000
 
Answer & Explanation Answer: C) 16000

Explanation:

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Filed Under: Simple Interest

6 1774