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A can complete a work in 32 days and B is 2/3 as efficient as A. So, in how much time will B complete twice the work?
1. 96 days
2. 49 days
3. 50 days
4. 70 days
5. 80 days

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Correct Answer - Option 1 : 96 days


A can complete the work in 32 days

B is 2/3 as efficient as A


Let the efficiency of A and B be 3x and 2x respectively.

Work done by A in 32 days = 32 × 3x = 96x

Total work = 96x

Time taken by B to complete the twice work = ( 2 × 96x)/2x days

⇒ 96 days

∴ B will complete twice the work in 96 days

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