Age Problems
Tom is three years older than George. 2 years ago, Tom was four times as old as George.
What is the age of Tom now?
Word Problem
A bridge is built across a river. One quarter of the bridge is over the left bank of the river and one third of the bridge is over the right bank. The river is 120 m wide. How long is the bridge?
Tom = T George = G
ReplyDeleteIf Tom is 3 years older than George then:
T = G + 3
The Question Also says that 2 years ago, Tom was 4 times as old as George which means:
T - 2 = 4(G - 2)
Next you have to substitute the T = G + 3 in to the other equation so you would get:
G + 3 - 2 = 4G - 8
G + 1 = 4G - 8
G = 4G - 9
-3G = -9
3G = 9
G = 3
If G is equal to 3 then Tom would be 5 since Tom is 2 years older than George.