Question

A can do a work in 20 days which b can do it in 12 days b worked for 9 days . A can finish the remainng work in

Answer 1

Answer:

20=12

x=9

cross multiplication

12x=180

x=15

answer is 15 days

Answer 2

Answer:

20=12

x=9

therefor,

12x=180

x=15

the answer is =15 days

Step-by-step explanation:

Hope it helps you..........