During a charity drive, Primary 6 raised 5 times as much money as Primary 1 on the first week. On the second week, Primary 6 raised another $366 while Primary 1 raised another $512. During the entire charity event, Primary 6 raised 3 times as much as Primary 1. What was the total amount raised by Primary 6?
|
Primary 6 (1) |
Primary 1 (2) |
Make p the same (2) x 3 = (3) |
Before |
5 u |
1 u |
3 u |
Change |
+ 366 |
+ 512 |
+ 1536 |
After |
3 p |
1 p |
3 p |
(1) = (3)
5 u + 366 = 3 u + 1536
5 u - 3 u = 1536 - 366
2 u = 1170
1 u = 1170 ÷ 2 = 585
From (2)
1 p = 585 + 512 = 1097
Total amount raised by Primary 6
= 3 p
= 3 x 1097
= $3291
Answer: $3291