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 1785
Q:

In ABC two medians BE and CF intersects at the point O and P,Q are the midpoints of BO and CO respectively. If the length of PQ=3cm, then the length of FE will be

A) 3 cm B) 6 cm
C) 9 cm D) 12 cm
 
Answer & Explanation Answer: A) 3 cm

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

In 250 litres mixture of soda and water the ratio of amount of soda to that of water is 7 : 18. In order to make this ratio 2 : 3, how many more litres of soda should be added?

A) 37.5 B) 42.5
C) 45 D) 50
 
Answer & Explanation Answer: D) 50

Explanation:
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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

X and Y undertook to do a piece of work for Rs 5400. X alone could do this work in 18 days and Y alone could do this work in 24 days. With the assistance of Z they finished the work in 8 days. What is the share (in Rs) of Z?

 

A) 1200 B) 1500
C) 1600 D) 1800
 
Answer & Explanation Answer: A) 1200

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

Which of the numbers given below is the square root of 14161?

A) 119 B) 121
C) 131 D) 141
 
Answer & Explanation Answer: A) 119

Explanation:
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Filed Under: Square Roots and Cube Roots
Exam Prep: Bank Exams

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Q:

If x2+ y2+ z2= xy + yz + zx, then what is the value of (7x + 3y – 5z)/5x?

A) 0 B) 1
C) 5 D) 33/5
 
Answer & Explanation Answer: B) 1

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

There are red (A), yellow(B) and green (C) tokens in a bag. A : B :: 3 : 8, B : C :: 6 : 13. A : B : C is given by

A) 9 : 24 : 52 B) 3 : 48 : 13
C) 3 : 8 : 13 D) 3 : 6 : 13
 
Answer & Explanation Answer: A) 9 : 24 : 52

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

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Q:

If x -­ y = 7 and xy = 32, then value of (x2 + y2) is

A) 49 B) 64
C) 113 D) 15
 
Answer & Explanation Answer: C) 113

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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