Question

A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 hours to fill the tank. The leak can drain all the water of the tank in:

A.
4 1/ 3 hours
B. 7 hours
C. 8 hours
D. 14 hours

Answer 1

Can u please help

Answer 2

The leak took the same amount of time?

Answer 3

Reread the problem. It makes no sense.

Answer 4

I guess the leak was already fixed.
I don't know about math, but the plumber is good.

Answer 5

@mathstudent55 LOL

Answer 6

A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/3 hours to fill the tank. The leak can drain all the water of the tank in:

Answer 7

@mathstudent55

Answer 8

The pump's speed is 1 tank in 2 hours or 0.5 tank/hour.
With the leak, the speed of filling the tank is 1 tank/( 2 1/3 hours) = 3/7 tank/hour.
The difference is 1/2 - 3/7 = 4/14 = 1/7 tank per hour.
The leak is 1/7 tank per hour.
That means it will take 7 hours to for the leak to empty the tank.

Answer 9

1/2 - 3/7 it's1/14 check once

Answer 10

y u r taking the difference ??@mathstudent55

Answer 11

Wow. You are correct. I subtracted incorrectly and reduced incorrectly.
Let me do it again.
BTW, yes, I am subtracting.

Answer 12

It's ok math .reason y u r taking the difference of two

Answer 13

1/2 -3/7 ????

Answer 14

The pump's speed is 1 tank in 2 hours or 1/2 tank/hour.
With the leak, the speed of filling the tank is 1 tank/( 2 1/3 hours) = 3/7 tank/hour.
The difference (subtraction) is 1/2 - 3/7 = 7/14 - 6/14 = 1/14 tank per hour.
The leak is 1/14 tank per hour.
That means it will take 14 hours to for the leak to empty the tank.

Answer 15

Thanks for pointing that out.
See, I did say above I didn't know about the math, but the plumber was good.