Question

Two tanks are of the same capacity when fully filled. Tank A empties
completely in 3 hours while Tank B empties in 5 hours. When will the
water level in one tank be twice the water level in the other tank?​

Answer 1

Answer:

Let height of water level in each tank be x cm.

Tank A is completely filled,

Now, some water is poured from tank A to tank B

∴ Volume of remaining water in tank A = 15×15×x cubic.cm

Now, volume of water in tank B = 25×11×x cubic.cm

Volume of tank A = Volume of remaining water in tank A + volume of water in tank B

15×15×20 =(15×15×x)+(25×11×x)

∴ 4500=225x+275x

∴ 500x=4500

∴ x=9 cm

∴ Height of water level in each tank is 9 cm.

Answer 2

Answer:

The other person who answered your question is wrong

this is correct answer