exam Maths Puzzle Numerical Ability

My question is from a worksheet. It is as follows:Tony is 50 years older than Brett. Twenty years ago Tony was at three times as old as Brett was. At most, now old is Brett now?
I am really lost on this question.

Read Solution (Total 0)

exam Other Question

If two inlet pipes are both open, they can fill a pool in 1 hour and 12 minutes. One of the pipes can fill the pool itself in 2 hours. How long will it take the other pipe to fill the pool itself? solve and graph the following equations.

A)x - y = 2
3x + y = -6

B) x + y = 0
x - 4y = 2

C) x + 2y = -1
x - 4y = 1

D) 2x - 3y = 1
3x + y = 1