Q16 of 37 Page 195

If x ∝ y2 and y = 4 when x = 8; if x = 32, then the value of y is

Given:

x ∝ y2


it can written as,


x = ky2


y = 4 and x = 8 (given)


8 = k (4)2




When x = 32,



⇒ y2 = 64


⇒ y = 8


Option (b) is correct.

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