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If A takes 4//5 days as B takes and work...

If A takes `4//5` days as B takes and working together they require `(20)/(3)` days to complete the whole work What is the efficiency of B ?

A

`6(2)/(3)%`

B

`16%`

C

`5.55%`

D

`8(1)/(3)%`

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The correct Answer is:
A
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ARIHANT SSC-TIME AND WORK-EXERCISE(LEVEL 1)
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  2. X is 4 times more efficient as Y, then the number of days taken by X a...

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  3. If A takes 4//5 days as B takes and working together they require (20)...

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  4. A is thrice as efficient as B. Working together they complete the work...

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  5. A and B can do a piece of work in 8 days, B and C can do the same work...

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  6. A and B can do a piece of work in 12 days, B and C in 15 days and C an...

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  7. Ganga, Jamuna and Saraswati can do a piece of work. working together, ...

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  8. A can finish a work in 12 days and B can do it in 15 days. After A had...

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  9. Raja can do a piece of work in 14 days, while Rani can do the same wor...

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  10. A and B can complete a task in 30 days when working together after A a...

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  11. Sonu can do a piece of work in 20 days. He started the work and left a...

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  12. Efficiency of Asha is 25% more than Usha and Usha takes 25 days to com...

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  13. Krishna can do a work in 10 days while Mohan can do the same work in 2...

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  14. Kareena can do a piece of work in 9 days and Karishma can do the same ...

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  15. Kavita, Babita and Samita started a work. 5 days later Samita left the...

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  16. The ratio of efficiency of A is to C is 5:3. The ratio of number of da...

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  17. Anand can do a piece of work in 45 days, but Bahuguna can do the same ...

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  18. Chandni and Divakar can do a piece of work in 9 days and 12 days respe...

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  19. Fatima and Zahira can do a piece of work in 12 days and 15 days respec...

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  20. In the previous question (number 33) if Zahira starts first then in ho...

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