Quantitative Aptitude - Arithmetic Ability Questions

Q:

The traffic lights at four different road crossings change after every 15 sec, 18 sec, 27 sec and 30 sec respectively. If they all change simultaneously at 6:10:00 hours, then at what time will they again change simultaneously?

 

A) 6:14:30 hours B) 6:40:00 hours
C) 6:14:00 hours D) 10:40:00 hours
 
Answer & Explanation Answer: A) 6:14:30 hours

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

Two numbers are 40% and 50% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

A) 16.67 percent B) 20 percent
C) 10 percent D) 25 percent
 
Answer & Explanation Answer: B) 20 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

A) 5 B) 10√3
C) 20 D) 20√3
 
Answer & Explanation Answer: C) 20

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If aq-r+br-p-cp-q, then find the value of (pa + qp + rc) is

A) 0 B) 1
C) 2 D) -1
 
Answer & Explanation Answer: A) 0

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Q:

Reflection of the point (-3,6) in the x-axis is

A) (3,6) B) (6,-3)
C) (-3,-6) D) (-6,3)
 
Answer & Explanation Answer: C) (-3,-6)

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Filed Under: Simplification
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Q:

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of sec C.sin A?

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

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Q:

The ratio of salary of X, Y and Z is 15 : 3 : 8. If Z gets Rs. 3960 more than Y, then what is the salary (in Rs.) of X?

A) 11880 B) 12360
C) 9900 D) 10240
 
Answer & Explanation Answer: A) 11880

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

ΔDEF is right angled at E. If secD = 25/7, then what is the value of cosecF ?

A) 7/25 B) 24/7
C) 25/7 D) 7/24
 
Answer & Explanation Answer: C) 25/7

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Filed Under: Simplification
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