Arithmetichard · Past Paper
If 10% of x is the same as 20% of y, then x : y is equal to:
A2 : 1
B1 : 2
C3 : 2
D5 : 1
✓ Correct Answer: A — 2 : 1
0.1x = 0.2y => x/y = 0.2/0.1 = 2/1.
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