Question

A can do a job in 10 days B can do the same job in 12 days and c can do the same in 15 days. In how many days they will finish the work together?​

Answer 1

$\large\underline{\underline{\sf Answer:}}$

Amount of work A can do in 1 day = 1/10

Amount of work B can do in 1 day = 1/12

Amount of work C can do in 1 day = 1/15

Work done by A,B and C in 1 day =

1/10 + 1/12 + 1/15 =15/60=1/4

Working together, they will complete the work in 4 days.

@ShinySmile

Answer 2

Amount of work A can do in 1 day = 1/10

Amount of work B can do in 1 day = 1/12

Amount of work C can do in 1 day = 1/15

Work done by A,B and C in 1 day =1/10 + 1/12 + 1/15

=15/60

=1/4

Working together, they will complete the work in 4 days.

Hope it will helps ✌

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