Question

. In a well, there is 800 litres of water. At the top, there is a pipe that deposits 25 litre per
minute into the well, and at the bottom, there is another pipe that withdraws 30 litre per minute
from the same well. How many litres of water will there be in the well after 15 minutes of the
pipes functioning?​

Answer 1

Answer:

Step-by-step explanation:

Water left after 1 min=(800+25)-30=825-30=795

therefore water left after 15 min=(800+25*15)-30*15=(800+375)-450=1175-450=725litres.

Answer 2

Answer:

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At the top there is a pipe that deposits 25 litres per minute into the well, and at the bottom there is a pipe which withdraws 30 litres per minute from the same well. How many litres of water will be there in the well after 15 minutes of the pipe functioning? 725 l. 75 litres.

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