Question 732191
SINCE ADAM WORKS FASTER SO HE WILL TAKE LESS TIME IN PROPORTION TO BILL, LET bill COMPLETE THE WORK IN X MINUTES , SO  adam will complete in x/2 minutes , since they both complete in 10 minutes, so 1/x + 2/x = 1/10 , so x= 30 so bill will complete in 30 minutes and adam will complete in 15 minute,