During a charity drive, Primary 5 raised 5 times as much money as Primary 3 on the first week. On the second week, Primary 5 raised another $379 while Primary 3 raised another $527. 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 |
5 u |
1 u |
2 u |
Change |
+ 379 |
+ 527 |
+ 1054 |
After |
2 p |
1 p |
2 p |
(1) = (3)
5 u + 379 = 2 u + 1054
5 u - 2 u = 1054 - 379
3 u = 675
1 u = 675 ÷ 3 = 225
From (2)
1 p = 225 + 527 = 752
Total amount raised by Primary 5
= 2 p
= 2 x 752
= $1504
Answer: $1504