Question

A can dig a ditch in 1 hour and the same ditch B can dig 1.25 hours then for completing 72 ditches A and B works together daily 8 hours then they will take how many days for completing the work?

Answer 1

Answer:

5 days

Step-by-step explanation:

A in 1 day(8 hrs) can dig (8/1)= 8 ditches

B in 1 day(8 hrs) can dig (8/1.25)= 6.4 ditches

so,  A & B together in 1 day can dig (8+6.4)=14.4 ditches

Therefore , days required to dig 72 ditches = (72/14.4) = 5 days