if x% of y is equal to z, what percent of z is x? ans. 100^2/y. just want to know trick.
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Answer:
100²/y
Step-by-step explanation:
x% of y is equal to z
It can be written as
x% of y = z
(x/100) × y = z
xy/100 = z ...(1)
If "a" percent of z is x then
a% of z = x
(a/100) × z = x
az/100 = x
a = 100x/z
From equation (1)
a = 100x / (xy/100)
a = 100²/y
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