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 $332 while Primary 2 raised another $562. During the entire charity event, Primary 5 raised 2 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 2 = (3) |
Before |
6 u |
1 u |
2 u |
Change |
+ 332 |
+ 562 |
+ 1124 |
After |
2 p |
1 p |
2 p |
(1) = (3)
6 u + 332 = 2 u + 1124
6 u - 2 u = 1124 - 332
4 u = 792
1 u = 792 ÷ 4 = 198
From (2)
1 p = 198 + 562 = 760
Total amount raised by Primary 5
= 2 p
= 2 x 760
= $1520
Answer: $1520