Question 16Both x and y vary directly with each other a

Question 16Both x and y vary directly with each other a
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Question 16

Both x and y vary directly with each other and when x is 10, y is 14, which of the following is not a possible pair of corresponding values of x and y?
(a) 25 amd 35
(b) 35 and 25
(c) 35 and 49
(d) 15 and 21
 

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Right Answer is:

SOLUTION

Both x and y vary directly with each other.
i.e. x∝y.
If x=10 and y =14
So, 10∝14 or 5∝7
This proportion is not follow in option (b) pairs.
Hence, option (b) is correct.
 

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