Quantitative Aptitude - Arithmetic Ability Questions

Q:

2sin[(C+D)/2].cos[(C­-D)/2] is equal to

A) sinC ­-  sinD B) cosC + cosD
C) cosC -­ cosD D) sinC + sinD
 
Answer & Explanation Answer: D) sinC + sinD

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Q:

The slope of the line passing through the points (7,-2) and (x,1) is -3/10. Find x.

A) 4 B) 2
C) -4 D)  -3
 
Answer & Explanation Answer: D)  -3

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Q:

The average height of A, B and C is 148 cm. If the average height of A and B is 136 cm and that of B and C is 125 cm, then what is the height (in cm) of B?

A) 56 B) 78
C) 112 D) 130
 
Answer & Explanation Answer: B) 78

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Q:

In ΔABC, ∠B=90 deg and BC= √3 AB. Find the measurement of ∠A

A) 45 deg B) 90 deg
C) 30 deg D) 60 deg
 
Answer & Explanation Answer: D) 60 deg

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Q:

In the given figure, PQ is the diameter of the circle. What is the measure (in degrees) of QSR?

A) 23 B) 37
C) 47 D) 57
 
Answer & Explanation Answer: C) 47

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Q:

The difference between Peter and Preeti's ages is 5 years. When they married each other 35 years ago, 4 times Peter's age was the same as 5 times the age of Preeti. What is the current sum of their ages?

A) 105 years B) 110 years
C) 115 years D) 112 years
 
Answer & Explanation Answer: C) 115 years

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Q:

A person purchased 10 shirts costing Rs 150 per shirt. Next day  he again purchased the shirts costing Rs 150 per shirt at a discount of Rs 30 per shirt and that day he spent a toal of Rs 1800. What is the average cost per shirt (in Rs)?

 

A) 125 B) 132
C) 138   D) 144
 
Answer & Explanation Answer: B) 132

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Q:

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the car is:

A) 3:5 B) 3:4
C) 4:3 D) 4:5
 
Answer & Explanation Answer: B) 3:4

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