Question

A can do a piece of work in x days and B can do it in (x + 16) days. If both working together
can do it in 15 days, find x.​

Answer 1

Answer:

24

Step-by-step explanation:

If A does a work in X days then in one day it does 1/X work similarly by making equation ..B in one day=1/X+16 now when they both do the work it take 15 days to complete so now the total work done by them is the sum of their one day work which is also equal to 1/15 as given in ques therefore

1/X+1/X+16 = 1/15

15(2x+16)= x^2+16x

now by using quadratic we get X= 24,-10

24 is the answer