book Maths Puzzle Numerical Ability

Please help with this - we just can't figure it out - thanks
If Shelly gives John $5, they will have the same amount of money.
If John gives Shelly $5, she will have twice as muc

Read Solution (Total 0)

book Other Question
5x-2y=-5
y-5x=3
solve by substitution an airplane flew for 4 hours with a 15 mi/h tail wind. the return flight against the same wind took 5 hours. find the speed of the airplane in still air.