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Question

If a1/x=b1/y=c1/zand b2=ac, then x+z=


A

y

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B

2y

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C

2xyz

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D

None of these

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Solution

The correct option is B

2y


Explanation for the correct option:

Find the value of x+z:

Given a1/x=b1/y=c1/zand b2=ac

Let a1/x=b1/y=c1/z=k

So, a=kx,b=ky,c=kz

Given b2=ac

k2y=(kx)(kz)k2y=k(x+z)2y=x+zx+z=2y

Hence, the correct option is (B).


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