1.

If A: B = 7: 5 and B: C = 9: 14, find A: C.

Answer»

A: B = 7: 5 and B: C = 9: 14

= (A/B) = (7/5) and (B/C) = (9/14)

= (A/B) × (B/C) = (7/5) × (9/14)

= (A/C) = (9/10)

Hence, A: C = 9:10



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