Question

Two pipes X and Y can fill an empty tank in 10 and 15 min respectively. If both pipes are opened,
then the time taken to fill the empty tank is
1
a) 8 min
b) 6 min
c) 7 min
d) 9 min​

Answer 1

Answer:

c 6min

Step-by-step explanation:

x____10

y____15

(1/10+1/15)

(3+2)/30

1/6 than 6 min