Question

Length and breadth of a bulletin board are r cm and t cm, respectively.

If x nails are used to repair one board, how many nails will be required to repair 15 such boards?

Answer 1

We have given, length of the board = r cm and breadth = t cm.

Number of nails required to repair 1 board = x.

∴ Number of nails required to repair 15 boards = 15 × x = 15x.