Question

a can complete a work in 20 days and b can complete the same work in 25 days .if the both of them work together, then in 3 days.what percent of the work will be complete​

Answer 1

Answer: 27%

Step-by-step explanation:

1/A+1/B = 1/20+1/25 = 9/100

Hence, A+B = 100/9 = 11.11 days

So, % of work in 3 days = 100x3/11.11 = 27%