x is what percent of y percent of z, in terms of x, y and z?
(A) 100xy/z
(B) 100yz/x
(C) 100yz/x
(D) 10000x/yz
(E) 10000yz/x
OA is D
What logical approach could be used here? An Expert should please reply me.
x is what percent of y percent of z
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We can let p be the percentage. Thus, we haveRoland2rule wrote:x is what percent of y percent of z, in terms of x, y and z?
(A) 100xy/z
(B) 100yz/x
(C) 100yz/x
(D) 10000x/yz
(E) 10000yz/x
x = p/100 * y/100 * z
x = pyz/10000
x*10000/yz = p
Answer: D
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