Question

A can do a piece of work in 6 days , B in 10 days and C in 15 days. they jointly work and earn Rs . 300. the sum of their wages for two days

Answer 1

By using LCM method,

LCM of 6,10,15 is 30

A- 6 days - 5 work per day

B-10 days - 3 work per day

C - 15 days - 2 work per day

They get Rs.300 for their completion of work in 3 days.

For 2 days, they will get Rs.200

Answer 2

1. Given A can do a piece of work in 6 days , B in 10 days and C in 15 days i.e., A=1/6,B=1/10,C=1/5
2. Let x be no.of days taken to complete work by them i.e.,
3. x[(1/6)+(1/10)+(1/15)]= 1
4. From this we get x=3 days
5. For 3 days they take 300.Hence for 2 days they will 200