During a charity drive, Primary 6 raised 4 times as much money as Primary 3 on the first week. On the second week, Primary 6 raised another $248 while Primary 3 raised another $508. During the entire charity event, Primary 6 raised 2 times as much as Primary 3. What was the total amount raised by Primary 6?
|
Primary 6 (1) |
Primary 3 (2) |
Make p the same (2) x 2 = (3) |
Before |
4 u |
1 u |
2 u |
Change |
+ 248 |
+ 508 |
+ 1016 |
After |
2 p |
1 p |
2 p |
(1) = (3)
4 u + 248 = 2 u + 1016
4 u - 2 u = 1016 - 248
2 u = 768
1 u = 768 ÷ 2 = 384
From (2)
1 p = 384 + 508 = 892
Total amount raised by Primary 6
= 2 p
= 2 x 892
= $1784
Answer: $1784