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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