Mathematics · Time and Work

A is 40% more efficient than B. How much time will they take working together to complete a job, which A alone could have done in 31 days?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1217 12 days✓
2515 32 days
3215 12 days
4517 32 days

Correct answer

217 12 days

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A is 40% more efficient than B. How much time will they take working together to complete a job, which A alone could have done in 31 days?

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A is 40% more efficient than B. How much time will they take working together to complete a job, which A alone could have done in 31 days?

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