Arithmeticmedium · Past Paper
If x is 10% of y and y is 10% of z, what is the ratio x:z?
A1:100
B1:10
C1:1
D10:1
✓ Correct Answer: A — 1:100
x = 0.1y, y = 0.1z => x = 0.1(0.1z) = 0.01z. x/z = 1/100.
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