Ratio and Proportion Practice Test 2

Question : 4 of 40

Marks: +1, -0

x varies inversely as square of y. Given that y = 2 for x = 1. The value of x for y = 6 will be equal to:

Solution:

Here,

x∝1/y^2⇒xy^2=k

∴k=1×2^2=4

Now,

xy^2 = k ⇒ x . 6^2 = 4

∴ x = 4/36=1/9

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