I) A fish tank measures 1m long by 40cm wide and 60cm height.

What is the capacity of the fish tank?

ii) How many litres of water does it take to fill it three quarters full?

1. The capacity of the water tank = 240 litres

2. So it will take 180 litres to fill it three quarters full.

Step-by-step explanation:

Dimensions of a water tank:

1 Meter=100 CM

Length (l) = 100 cm,

wide (w) = 40 cm,

Depth (h) = 60 cm,

Volume of the tank (V)

LWH

100 cm * 40 cm * 60 cm

240,000 cm³

The capacity of the water tank = 240,000 cm³ / 240 litres

(240,000*3) / 4 = 180,000 cm3

So it will take 180 litres to fill it three quarters full.