Question

A, B and C Can do a piece of work in 12days, 15days and 10 days respectively. In what time will they all together finish it?​

Answer 1

Answer:

Step-byIn 1 day part of work that A will do = 1/12

In 1 day part of work that B will do = 1/15

In 1 day part of work that C will do = 1/10

In 1 day A, B & C together will do =

1/12 + 1/15 + 1/10

LCM of 12, 15 & 10 is 60

(5 + 4 + 6)/60

= 15/60 = 1/4

Therefore A, B & C together do 1/4 part of work in 1 day

Hence A, B & C together will finish complete work in 4 days.

Answer: 4 days-step explanation: