Question

pls help me to solve this question ​

Answer 1

Both A and B can complete 1/12th work in one day

So A+B=1/12 in one day

A alone can complete 1/20 th work

A=1/20 in one day

Now B alone how much work can complete

(1/20)+B=1/12

B =(1/12)-(1/20)

L.C.M of 12 and 20 is 60

So B=( (5–3)/60)

B=2/60=1/30

So alone can complete 1/30th work in one day

B alone can complete the work in 30 days

If the answer is correct pls mark me as brilliant

Answer 2

Answer:

I.e B can do work in 30 days

Step-by-step explanation:

Let B alone can do it =x days

1/A=1/5×(1/12)

1/A=1/60

1/20=1/60+1/x

1/x=1/20-1/60

1/x=2/60

:x=30 ,days