Solve the following mathematical problems:

A and B can complete a work in 15 days and 10 days respectively. They started doing the was together but after 2 days B had to leave and A alone completed the remaining work. H many days did it took to complete the whole work? (Time & Work)

Created: 1 year ago | Updated: 1 year ago
Updated: 1 year ago

(A + B)'s 1 day's work =115+110=16 Part
. (A + B) 's 2 day's work =26=13 Part
Remaining work= 1-13=23 Part
Now, part of work is done by A in 1 day

23 part of work is done by A in=15×23×1 = 10 days
Time taken to complete the work = 10+2 = 12 days

1 year ago

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