A picture of the keypad on an elliptical machine. Numbers go one, three, six, nine, 12, 15, 18, 21.

The display board on an elliptical machine the numbers go 24, 27, 30, 33, 36, 40

Hmmm, what do you notice and wonder?
Elliptical and my hotel gym

#Math #WhatYouGotAgainst39?
#NoticeAndWonder