Question

Chiraji can do a work in 15days ,natthi 25days and sumera in 30 days.how long will they take to do the work if they work togethher?

Answer 1

Work done by Chiraji in one day = 1/15

Work done by Natthi in one day = 1/25

Work done by Sameera in one day = 1/30

Work done by these three in one day

= 1/15 + 1/25 + 1/30

= 10 + 6 + 5 / 150

= 21 / 150

So time taken by these three to comokete work

= 150 / 21