Question

A tap can fill a fan 8 hrs 2nd pipe can fill in 10 hrs . if both the pipes are work together, the will be filled in
(a) 18 hrs (b) 24 hrs (c) 36 hrs (d) 40 hrs ​

Answer 1

Answer:

18 hour

Step-by-step explanation:

because10+8=18

Answer 2

Step-by-step explanation:

together they fill the can=1/8+1/10=5+4/40

=9/40

they fills 9/40 in 1 hour

they fills 1 part in 1÷9/40=40/9hour