Question

The answer is 3937 or 3938. I tried to solve the question but I got 31.1. Can someone please help me understand what I did wrong.

Answer 1

Given:

One shower lasts 11 mins. 15 secs. = 11.25 mins.

Total members = 5

Consumption rate = 10L/min.

Total amount consumed in a week = 10 x 11.25 x 5 X 7

= 11.25 x 350

= 3937.5 L

Hope this helps!

Answer 2

3937.5 or 3938 after round-off

Explanation:

11 minutes 15 seconds = 11.25 minutes

5 members of the family shower 7 times a week for 11.25 minutes

=total of 393.75 minutes

393.75 times the amount of water used which is 10 litres becomes 3937.5

I hope this helps