Question

plzz solve by language...

Answer 1

A can complete 1/15 part of work in a day

B can do 1/12 part of work in work

C can do 1/20 part in a day

they together can do = 1/15 + 1/ 12 + 1/20

= 8 + 10 + 6/120

= 24/120

= 1/5

so they together can work 1/5 part of work in a day

They worked for 2 days so they completed 1/5 × 2 = 2/5 part of work

remaining part of work = 1 - 2/5

= 3/5

3/5 part of work completed by A and B

A and B work in a day = 1/15 + 1/12

= 4 + 5 /60

= 9/60

= 3/20

A and B can complete work in 3/5 ÷ 3/20

= 3/5 × 20/3

= 4

so the remaining work is completed by A and B in 4 days