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 $359 while Primary 1 raised another $521. 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 |
+ 359 |
+ 521 |
+ 1563 |
After |
3 p |
1 p |
3 p |
(1) = (3)
5 u + 359 = 3 u + 1563
5 u - 3 u = 1563 - 359
2 u = 1204
1 u = 1204 ÷ 2 = 602
From (2)
1 p = 602 + 521 = 1123
Total amount raised by Primary 6
= 3 p
= 3 x 1123
= $3369
Answer: $3369