Question

'X' can do a work in 30 days while 'Y' can do
it in 40 days. In how many days can both work-
ing together can do it?
(a) 120 days
(b) 42 days
(c) 27 days
(d) 17.14 days​

Answer 1

Answer:

X=can do in 30

Y=can do in 40

together X+y = (d)

i hope