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 Quantitative Aptitude - Arithmetic Ability Questions

Q:

Choose the most appropriate answer:A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9 Km/h and the speed of the current is 3 Km/h, the distance between A and B is

A) 9 km B) 10 km
C) 11 km D) 12 km
 
Answer & Explanation Answer: D) 12 km

Explanation:

Speed of boat in still water = 9 km/hr

Speed of current = 3km/hr

Downstream speed = 9+3 = 12 km/hr

Upstream speed = 9-3 =6 km/hr

Let the distance between A to B be x km.

x/6 + x/12 = 3x + 2x = 36
3x = 36
x = 12 km

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

5 1623
Q:

By increasing the price of entry ticket to a fair in the ratio 11:16, the number of visitors to the fair has decreased in the ratio 19:9. In what ratio has the total collection increased or decreased?

A) decreased in the ratio 209:144 B) increased in the ratio 144:209
C) increased in the ratio 99:304 D) decreased in the ratio 304:99
 
Answer & Explanation Answer: A) decreased in the ratio 209:144

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If 27N4 is divisible by 11, then what is the value of N?

A) 2 B) 7
C) 9 D) 6
 
Answer & Explanation Answer: C) 9

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

Find the least number to be added to 1739 so that it is exactly divisible by 11.

A) 11 B) 2
C) 1 D) 10
 
Answer & Explanation Answer: D) 10

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

The ratio of present ages of R and S is 6:7. Before 12 years the ratio of their ages was 9:11. What is R's present age (in years)?

A) 56 B) 48
C) 36 D) 44
 
Answer & Explanation Answer: B) 48

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If (a + b)/c = 6/5 and (b + c)/a = 9/2, then what is the value of (a + c)/b?

A) 9/5 B) 11/7
C) 7/11 D) 7/4
 
Answer & Explanation Answer: D) 7/4

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

5 bottles cost as much as 2 bags. The cost of 15 bottles and 4 bags is Rs 2,000. What is the price (in Rs.) of a single bag?

A) 200 B) 215
C) 240 D) 250
 
Answer & Explanation Answer: A) 200

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If x+y+z = 1, 1/x + 1/y + 1/z = 1 and xyz = -1, then x3+y3+z3 is equal to

A) -1 B) 1
C) -2 D) 2
 
Answer & Explanation Answer: B) 1

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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