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If A and B cadn do a work in x and y da...

If A and B cadn do a work in x and y days, respectively, then time taken by A and B together to complete the work is `(x+y)/2`` (True/False)

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PEARSON IIT JEE FOUNDATION- TIME AND WORK-TEST YOUR CONCEPTS
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  2. Pipe A can fill a tank in 2 hours at the rate of the 6 litres per minu...

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  3. If A and B cadn do a work in x and y days, respectively, then time ta...

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  5. 12 men or 18 woman can do a work in 16 days. In how many days 12 men a...

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  10. On working 10 hourse a day, 15 men can complete a piece of work in 20 ...

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  11. A and B can do a work in 20 days, B and C in 40 days and A and C in 3...

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  12. A and B can finish a work together in 12 days, and B and C together in...

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  13. Work done by (x+4) mean in (x+5) days is equal to the work done by (x...

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  14. Pipe A in fill a tank in 15 horurs Pipe A and Pipe B together can fill...

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  15. 18 men can construct 200 m long wall in 16 days working 9 hours per da...

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  16. Vianay and Vikram can complete a work in 48 and 36 days, respectively ...

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  17. A is twice as efficient as B. Time taken by B to complete (4)/(7) par...

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  18. The ratio of work efficiency of a man and a woman is 3:2. A woman can ...

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  19. 12 men of 15 women can do a work in 40 days. 8 men and 10 women can d...

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  20. 12 men and 15 women can do a work in 6 days, and 6 men and 12 women ca...

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