In front of a classroom there is a concrete square pad with a concrete walkway leading to it.

The total area of the pad is 151m squared

The width of the concrete walkway is 4meters less than the length of the concrete square pad.

The concrete walkway is 5meters longer that the length of the concrete square pad.

What is the length of the concrete square pad?

This is hard. I can't work it out Miss Coffer.

ReplyDeleteI tried to do it but I think it is a bit hard.

ReplyDeleteHint: 151m is total area (including pathway)

ReplyDeleteif 151 is prime

12.2882057274 x 12.2882057274=151