Question

a can do a certain job in 12 days B is 60% more efficient than a find the number of days taken by b to finish the job

Answer 1

Answer:

Step-by-step explanation:A..........12'days. B..= 60%A =0.6A. So 0.6A requires how many days= x. X={0.6A/A}× 12=7.2 ........so B requires 7.2 days to complete the job.