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Subhash can copy 50 pages in 10 hours Subhash and Prakash...

This question belongs to Arithmetic Ability Time And Work
Time and Work
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Subhash can copy 50 pages in 10 hours; Subhash and Prakash together can copy 300 pages in 40 hours. In how much time can Prakash copy 30 pages?

Answer & Solution
Correct Answer: Option B
Number of page copied by (Subhash + Prakash) in 1 hour = $$\frac{{300}}{{40}}$$  = 7.5 pages;
Subhash copied pages in one hour = $$\frac{{50}}{{10}}$$ = 5 pages
Hence, Prakash copied pages in one hour = 7.5 - 5 = 2.5
Thus,
Prakash can copied 30 pages in = $$\frac{{30}}{{2.5}}$$ = 12 hour
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1 Comment
Santoshi Chelluri
Santoshi Chelluri 7 years ago
takes 10 days less than the time taken by B to finish a piece of work. If both A and B can do it in 12 days, then the time taken by B alone to finish the work is ?
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