Question

A water tank is in the shape of a cube contains 10 litres of water. Another tank in the same shape contains 6 litres of water. How many litres of water more is to be added to fill the second tank if its sides are twice the length of the first tank?

• A. 26 litres
• B. 45 litres
• C. 74 litres
• D. 80 litres

Answer 1

Answer:

C. 74 litres

If the side of a cube is doubled, its volume becomes 8 times Volume of the I tank=10 litre Volume of the II tank = 10 x 8 = 80 litres Ans: 80 - 6 = 74 litres