During a charity drive, Primary 6 raised 4 times as much money as Primary 1 on the first week. On the second week, Primary 6 raised another $218 while Primary 1 raised another $590. During the entire charity event, Primary 6 raised 2 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 2 = (3) |
Before |
4 u |
1 u |
2 u |
Change |
+ 218 |
+ 590 |
+ 1180 |
After |
2 p |
1 p |
2 p |
(1) = (3)
4 u + 218 = 2 u + 1180
4 u - 2 u = 1180 - 218
2 u = 962
1 u = 962 ÷ 2 = 481
From (2)
1 p = 481 + 590 = 1071
Total amount raised by Primary 6
= 2 p
= 2 x 1071
= $2142
Answer: $2142