Arithmeticmedium · Past Paper
If the ratios a:b = 2:3, b:c = 4:5 and c:d = 6:7, find a:d.
A16:35
B24:35
C48:105
D12:35
✓ Correct Answer: A — 16:35
a/d = (a/b)*(b/c)*(c/d) = (2/3)*(4/5)*(6/7) = 48/105 = 16/35.
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