If P : Q = 5 : 7 and Q : R = 8 : 9, then P : R =
A40:63
B35:81
C63:40
D81:35
Answer & Solution
Correct answer: A. 40:63
1. Make Q common: P:Q 5:7 → 40:56; Q:R 8:9 → 56:63.
2. Now P:Q:R = 40:56:63, so P:R = 40:63.
3. Therefore 40:63.
_Source: KMAT Karnataka 2022 PYQ Q.66_
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