Quantitative Reasoning

Q: If A:B = 5:7 and B:C = 6:11, then A:B:C is :

(a) :  30:42:77
(b) :  28:46:75
(c) :  1.061458333333333
(d) :  Non of these
(e) :  none of these
Answer:  30:42:77
Explanation:  

Q: The average height of 30 boys out of a class of 50, 160cm. If the average height of the remaining boys is 165cm, the average height of the whole class is (in cm)

(a) :  160cm
(b) :  162cm
(c) :  165cm
(d) :  170cm
(e) :  non of these
Answer:  162cm
Explanation:  

Q: The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What are their present ages of the elder person?

(a) :  10
(b) :  20
(c) :  30
(d) :  40
(e) :  non of these
Answer:  30
Explanation:  

Q: The percentage profit earned by selling an item for Rs. 1920 is equal to the percentage loss incurred by selling the same item for Rs. 1280. At what price should the item be sold to make 25% profit?

(a) :  Insufficient Data
(b) :  Rs. 3000
(c) :  Rs. 2000
(d) :  Rs. 2200
(e) :  non of these
Answer:  Rs. 2000
Explanation:  

Q: The least number by which 72 must be multiplied in order to produce a multiple of 112 is:

(a) :  6
(b) :  12
(c) :  14
(d) :  18
(e) :  20
Answer:  14
Explanation:  

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