What is the ratio of the length of PQ to that of QO?
Explanation:
ΔSQO ~ ΔRPO
⇒ SQRP = OQOP = SOOR
⇒ 1.52 = 28-3.5x28
⇒ 42 = 56 – 7x
⇒ x = 2
⇒ PQ = 7 cm, OQ = 21 cm
∴ PQ : OQ = 1 : 3
Hence, option (b).
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