maths
posted by joel needs help urgently .
1. After J spent 3/7 of his money and M spent 1/3 of his, they both had the same amount of money. If J had $408 less than M at first, how much money had M left?
2. 1/4 of the amount of water in a small fish tank is equal to 1/2 a pail. If the tank contains 9litres more water than the pail,what is the capacity of the pail?

J 3/7 J = M  1/3 M
or
4/7 J = 2/3 M
also,
J = M  408
Hmmm. I get a negative for J and M.
However, if the problem is revised to read J had $408 more than M, then
J = 2856, M = 2448, and M had 816 left
t/4 = p/2
t = p+9
tank = 18 pail = 9