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Question

Two numbers A and B are such that the sum of 8% of A and 6% of B is two-fifth of the sum of 10% of A and 20% of B. Find the ratio of A : B.



A

2:1

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B

1:2

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C

4:1

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D

1:4

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E

None of These

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Solution

The correct option is B

1:2


0.08 A + 0.05 B = 25 [ 0.1 A + 0.2 B ]

⇒ 0.4A + 0.3 B = 0.2 A + 0.4 B

AB=0.10.2

= 1:2 


Quantitative Aptitude

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