Question

There are two pipes a and b. If a filled 10 liters in an hour, b can fill 20 liters in same time. Likewise b can fill 10, 20, 40, 80, 160. If b filled in 1/16 of a tank in 3 hours, how much time will it take to fill the tank completely?

Answer 1

Step-by-step explanation:

suppose the tank is of 80 liter........

now in 3 hrs 1/16th tank can be filled.

so,

80/16=5liters.

now,in 3hrs=5liters.

4hrs=10litere.

5hrs=20liters.

6hrs=40liters

7hrs=80liters.....

hence proved.....