Question

b. Manoj did 1/10 part of a work, Kumar did 1/8 part of the same work and Kiran did 1/20 part of the work in 1 day. How much work did they finish working together? If Arun did the remaining work and finished it, find what part of the work was done by Arun?

Answer 1

Work done by Manoj = 1/10

Work done by Kumar  = 1/8

Work done by Kiran = 1/20

Total work done in 1 day = 1/10 + 1/8 + 1/20 = 11/40

Remaining work= 1 - 11/40 = 29/40

So, Work done by Arun = 29/40

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