Question

a water tank is 8.5 metre long 2 metre wide and 3.5 M deep how many cubic metres of water can it hold

Answer 1

Do you understand
I have done in short method

Answer 2

l = 8.5m

b = 2m

h = 3.5m

Volume of water tank = lbh

                                    = 8.5 × 2 × 3.5

                                     = 59.5m³

∴It can hold 59.5m³ of water.