Quantitative Aptitude - Arithmetic Ability Questions

Q:

The value of a machine depreciates at the rate of 20% per annum. If its present value is Rs 96000, then what was the value (in Rs) of the machine 2 years ago?

 

A) 138240   B) 134400  
C) 150000   D) 144000
 
Answer & Explanation Answer: C) 150000  

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Filed Under: Percentage
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Q:

If Sin4A - Cos4A = 1 then (A/2) in degrees is 0° < A  90°

 

A) 60 B) 45
C) 40 D) 30
 
Answer & Explanation Answer: B) 45

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Filed Under: Simplification
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Q:

Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?

A) 12 B) 14
C) 16 D) 28
 
Answer & Explanation Answer: D) 28

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

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Q:

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is

A) 6 B) 8
C) 10 D) 10.5
 
Answer & Explanation Answer: C) 10

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Filed Under: Volume and Surface Area
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Q:

The radius of a cylindrical milk container is half its height and surface area of the inner part is 616 sq.cm. The amount of milk that the container can hold, approximately, is [ Use : √5 = 2.23 and π = 22/7 ]

A) 1.42 litres B) 1.53 litres
C) 1.71 litres D) 1.82 litres
 
Answer & Explanation Answer: B) 1.53 litres

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Filed Under: Volume and Surface Area
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Q:

Two trains start moving from stations S and R. Both trains move towards each other at speeds of 35 km/hr and 42 km/hr respectively. When they meet each other, the second train has travelled 90 km more than the first. What is the distance (in km) between S and R?

 

A) 450 B) 990
C) 540 D) 1040
 
Answer & Explanation Answer: B) 990

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Filed Under: Problems on Trains
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Q:

If 3:27 :: 5:?

A) 25 B) 125
C) 250 D) 625
 
Answer & Explanation Answer: B) 125

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Filed Under: Ratios and Proportions
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Q:

Divide Rs.221 in the ratio 1:3:6:7. The rupees in the respective ratios are

A) 13,39,77 & 92 B) 13,39,79 & 90
C) 13,39,78 & 91 D) 13,40,80 & 91
 
Answer & Explanation Answer: C) 13,39,78 & 91

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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