Percentage Practice Test 4 with solutions

Question : 4 of 40

Marks: +1, -0

If x% of y is 100 and y% of z is 200, then find a relation between x and z.

Solution:

Here,

x/100×y=100

∴y=10000/x

...(i)
Again

y/100×z=200

∴y=20000/z

...(ii)
From (i) and (ii), we get

1/x=2/z⇒z=2x

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