Question

B takes 4 times as long as A and C together and C takes thrice as long as A and B

together to complete the work. If A, B and C together complete the work in 20 days,

how long would B alone take to complete the work?​

Answer 1

Answer:

96 days

Step-by-step explanation:

Let B and C together do the job in x days. So, A does the job in 3x days.

So, A + B + C together do the job in 1 day 1/3x + 1/x = 4/3x part.

Again, A+ B+C do in 1 day 1/24 part of the job

So, 4/3x = 1/24 Or, x = 32

So, A does the job in 3 * 32 = 96 days Ans.