
Lily had 2/3 as much money as Andrew. Afterr each of them spent $250, the amount of money Lily had left became 3/10 of the total amount of money both of them had left. (a) How much money did Andrew have at first? (b) How much must Andrew give to Lily so that they have the same amount of money in the end? This is a very common question at Primary 5 and 6. The trick is to understand that the 3 units before is equivalent to 12 units. From there, one can easily solve the question. Hope this helps!