Arithmeticmedium · Past Paper
If (x/5) = (y/8), then (x+5):(y+8) is equal to:
A3:5
B13:8
C8:5
D5:8
✓ Correct Answer: D — 5:8
If x/5 = y/8 = k, then x=5k and y=8k. (5k+5)/(8k+8) = 5(k+1)/8(k+1) = 5/8.
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