if A& B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
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A and B can together complete the work in 15 days.
The work that can be done by A and B in 1 day = 1/15
B alone can complete the work in 20 days.
work that can be done by B in 1 day = 1/20
⇒ A 's one day's work = 1/15- 1/20 = 1/60
∴ A alone can complete the work in 60 days.
Hope it helps... :)
The work that can be done by A and B in 1 day = 1/15
B alone can complete the work in 20 days.
work that can be done by B in 1 day = 1/20
⇒ A 's one day's work = 1/15- 1/20 = 1/60
∴ A alone can complete the work in 60 days.
Hope it helps... :)
niyamee:
pls mrk brainliest if it helped pls.. :)
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