Question

Declan is stacking identical cube-shaped boxes. He stacks 8 boxes to make a tower that is 144 cm tall. He adds 1 more box to the tower. How tall is the tower now? Give your answer in centimetres (cm).

Answer 1

Explanation:

The answer is 162cm.

Explanation: 8 boxes=11cm tall.

To find: Height of tower

When one box is added.

solution: heght of each box= 144/8=18

Total height of the 9 boxes= 9×18= 162cm