Arithmeticmedium · Past Paper
If $x:y = 3:4$, find the value of $(5x - 2y) : (7x + 2y)$.
A7:29
B11:29
C7:25
D9:25
✓ Correct Answer: A — 7:29
Substitute x=3, y=4: (5*3 - 2*4) : (7*3 + 2*4) = (15-8) : (21+8) = 7:29.
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