During a charity drive, Primary 5 raised 6 times as much money as Primary 2 on the first week. On the second week, Primary 5 raised another $264 while Primary 2 raised another $547. During the entire charity event, Primary 5 raised 3 times as much as Primary 2. What was the total amount raised by Primary 5?
|
Primary 5 (1) |
Primary 2 (2) |
Make p the same (2) x 3 = (3) |
Before |
6 u |
1 u |
3 u |
Change |
+ 264 |
+ 547 |
+ 1641 |
After |
3 p |
1 p |
3 p |
(1) = (3)
6 u + 264 = 3 u + 1641
6 u - 3 u = 1641 - 264
3 u = 1377
1 u = 1377 ÷ 3 = 459
From (2)
1 p = 459 + 547 = 1006
Total amount raised by Primary 5
= 3 p
= 3 x 1006
= $3018
Answer: $3018