Two numbers A and B are such that the sum of 5% A and 4% of B is two - third of the sum o f 6% A and 8% of B. what is the ratio of A and B.

A 1: 1
B 2 :3
C 2: 5
D 4: 3

Correct Answer: 4: 3

According to question, 5A100 + 4B100 = 23×6A100 + 8B100⇒5A + 4B = 23×6A + 8B⇒3×5A + 4B = 2×6A + 8B⇒15A + 12B = 12A + 16B⇒3a = 4B∴A:B = 4:3
Bissoy MCQ
#গণিত #অনুপাত-সমানুপাত (Ratio-Proportion) #AB Bank Ltd #AB Bank Ltd - Assistant Officer - 10.01.2014

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