A and B can do a job together in 10 days. A is 5/3 times as efficient

1.	A and B can do a job together in 10 days. A is 5/3 times as efficient as B. The same job can be done by A alone in how many days?1. 222. 233. 164. 255. None of the above
Answer» Correct Answer - Option 3 : 16 Given: A and B = 10 days A/B = 5/3 Calculation: 1 day work of A : 1 day work of B = 5 : 3 ⇒ Let the A work be 5X and B work be 3X ⇒ 5X + 3X = 1/10 ⇒ 8X = 1/10 ⇒ X = 1/80 ⇒ A’s 1 day of work = 5 × (1/80) ∴ A can alone do the work in 16 days

A and B can do a job together in 10 days. A is 5/3 times as efficient as B. The same job can be done by A alone in how many days?1. 222. 233. 164. 255. None of the above

Answer» Correct Answer - Option 3 : 16

Given:

A and B = 10 days

A/B = 5/3

Calculation:

1 day work of A : 1 day work of B = 5 : 3

⇒ Let the A work be 5X and B work be 3X

⇒ 5X + 3X = 1/10

⇒ 8X = 1/10

⇒ X = 1/80

⇒ A’s 1 day of work = 5 × (1/80)

∴ A can alone do the work in 16 days

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A and B can do a job together in 10 days. A is 5/3 times as efficient as B. The same job can be done by A alone in how many days?1. 222. 233. 164. 255. None of the above

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