Question 4703
First define a couple of things:

Let a = points scored by Albert
Let b = points scored by Bob


First eqn we know is that: b = 3a


Second thing we know is that b-a = 10 (since bob scored more than albert).


So, put equn1 into the second eqn, as: 3a-a = 10


ie 2a = 10
so a = 10/2
--> a = 5
hence b = 15


jon.