Question

PLEASE ANSWER THE QUESTION ABOVE AND SHOW THE WORKING ​
Fist answer will be marked braliest if it's correct

Answer 1

Answer:

750L

Step-by-step explanation:

Quantity of water in the well = 800L

Let the names of the two pipes be 'A' and 'B' repestively.

Since, Pipe A deposits 25 litres per min

Therefore, Pipe A's 15 mins work= 25×15

=375

Since, Pipe B withdraw 30 litres per min

Therefore, Pipe B's 15 mins work = -30×15

=-450

Pipe (A+B)'s 15mins work = 375+(-450)

= 375-450

= -75

Quantity of water that will be there in the well after 15 mins of the pipes functioning = 800L - 75L

= 725L

HOPE IT HELPS YOU