Question

13 litres of water comes out of a tap in one minute. of water filled in the bucket in half an hour.

• A. 450 L
• B. 240 L
• C. 390 L
• D. 600 L

Answer 1

The correct option is C 390 L

To find the water stored in the bucket we need to multiply the time and the rate at which water is coming out of the tap.
We know that in an hour = 60 minutes are there
So in half an hour = 30 minutes
Total amount of water filled in the bucket =
$\begin{array}{ccccc}& & 3& 0& \\ & \times & 1& 3& \\ & & 9& 0& (30\times 3)\\ +& 3& 0& 0& (30\times 10)\\ & 3& 9& 0& \end{array}$
So after half an hour 390 L of water will be there.