If 7x=8k and 5y=6k, then the value of ratio x is to y is :

(a) 20:21
(b) 21:20
(c) 35:48
(d) 48:35

Anurag Mishra Professor Asked on 1st February 2016 in Reasoning Questions.
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2 Answer(s)

a

Avisluv7 Default Answered on 3rd February 2016.
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Answer: (a) 20: 21

Explanation:-
7 X = 8 k
k = 7 X/8

5 Y = 6 k

Put the value of k = 7 X/8,
Then,  5 Y = 6 x  7 X/8
40 Y = 42 X
X/Y = 40/42
= 20/21

So, the ratio of X and Y is 20: 21.

Hence, the correct answer is option (a) 20: 21.

Anurag Mishra Professor Answered on 15th February 2016.
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