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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

A shopkeeper by selling 20 Timex watches, earns a profit equal to the selling price of 4 Timex watches. His profit percentage is

A) 20 percent B) 25 percent
C) 30 percent D) 50 percent
 
Answer & Explanation Answer: B) 25 percent

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

4 1971
Q:

If cot A = [sin B/(1 – cos B)], then what is the value of cot 2A?

A) cot(B/2) B) cot 2B
C) cot B D) tan B
 
Answer & Explanation Answer: C) cot B

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Filed Under: Simplification
Exam Prep: Bank Exams

5 1971
Q:

A thief drives his motor cycle at a speed of x kmph. The Policemen started chasing him in a jeep after 4 hrs and catches in 4 hrs. If the speed of jeep of policemen is 40 kmph, then calculate the speed of thief's motorcycle in kmph?

A) 30 B) 36
C) 45 D) 20
 
Answer & Explanation Answer: D) 20

Explanation:

Given that, speed of thief motorcycle is x kmph .

 

Given that, policemen started chasing him after 4 hours and catches him in 4 hours.

Distance travelled by the thief in 4 + 4 = 8 hours is d = s t 

=> d = 8x kms

 

Distance covered by the police in 4 hours is

D = 4 x 40 = 160 kms

 

To catch the thief, distance covered by the thief is equal to distance covered by the police .

 

Therefore,

d = D

 

d = 8x = 160 

x = 160/8 = 20

x = 20 kmph

 

Hence, the speed of thief's motorcycle is 20 km/hr.

 

 

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Filed Under: Time and Distance
Exam Prep: Bank Exams

0 1970
Q:

Chutki can bake 30 cakes in 15 hours. Chutki and Badki together can bake 90 cakes in 30 hours. How many cakes Badki can bake in 10 hours?

A) 75 B) 20
C) 10 D) 60
 
Answer & Explanation Answer: C) 10

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Filed Under: Time and Work
Exam Prep: Bank Exams , CAT

3 1970
Q:

If the radius of a circle is increased by 14% its area increases by

A) 28 percent B) 29.96 percent
C) 14 percent D) 14.98 percent
 
Answer & Explanation Answer: B) 29.96 percent

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Filed Under: Area
Exam Prep: Bank Exams

1 1969
Q:

If A : B = 2 : 5, B : C = 4 : 3 and C : D = 2 : 1, then what is value of A : C : D?

A) 6 : 5 : 2 B) 7 : 20 : 10
C) 8 : 30 : 15 D) 16 : 30 : 15
 
Answer & Explanation Answer: D) 16 : 30 : 15

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1969
Q:

A ladder is resting against a vertical wall and its bottom is 2.5 m away from the wall. If it slips 0.8 m down the wall, then its bottom will move away from the wall by 1.4 m. What is the length of the ladder?

A) 6.2 m B) 6.5 m
C) 6.8 m D)  7.5 m
 
Answer & Explanation Answer: B) 6.5 m

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Filed Under: Height and Distance
Exam Prep: Bank Exams

10 1968
Q:

What is the value of sin (630 + A) + cos A?

A) √3/2 B) 1/2
C) 0 D) 2/√3
 
Answer & Explanation Answer: C) 0

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Filed Under: Simplification
Exam Prep: Bank Exams

1 1968