Question

a cuboid fish tank has a length of 30cm and breadth of 20 cm and height of 20cm the tank is placed on horizontal table and its is three quarter of full of water find the length of area of the tank which is contact with water​

Answer 1

Answer:

15 cm

Step-by-step explanation:

Volume of the tank = lbh = 30 × 20 × 20 = 12000cm^3

3/4 × 12000 = 3 × 3000 = 9000 cm^3

Area of tank = lb = 30 × 20 = 600cm^2

Area × h' = Volume of water, where h' = length of area of tank in contact with water.

600 × h' = 9000

h' = 9000/600 = 15 cm