During a charity drive, Primary 5 raised 4 times as much money as Primary 3 on the first week. On the second week, Primary 5 raised another $304 while Primary 3 raised another $596. During the entire charity event, Primary 5 raised 2 times as much as Primary 3. What was the total amount raised by Primary 5?
|
Primary 5 (1) |
Primary 3 (2) |
Make p the same (2) x 2 = (3) |
Before |
4 u |
1 u |
2 u |
Change |
+ 304 |
+ 596 |
+ 1192 |
After |
2 p |
1 p |
2 p |
(1) = (3)
4 u + 304 = 2 u + 1192
4 u - 2 u = 1192 - 304
2 u = 888
1 u = 888 ÷ 2 = 444
From (2)
1 p = 444 + 596 = 1040
Total amount raised by Primary 5
= 2 p
= 2 x 1040
= $2080
Answer: $2080