Given:
A can finish the work = 56
B can finish the work = 70
Solution:
Total work = LCM of 56 and 70
= 280
Then the efficiency of A = 280/56= 5 unit/day
Efficiency of B = 280/70 = 4 unit\day
34 work days work which is done by B = 344 = 136
Remaining work = 280 - 136 = 144
They do this (144 unit) work together = 144/9 = 16
After 16 days A left the work.
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishTwo pipes, P and Q, together can fill a tank in 5 hours. If pipe P alone can fill the tank in 10 hours, then how much time (in hours) will pipe Q alone take to fill the tank?
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P can do work in 12 hr, Q in 6 hr. Together they must do double the work. Time required?
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