During a charity drive, Primary 4 raised 6 times as much money as Primary 1 on the first week. On the second week, Primary 4 raised another $348 while Primary 1 raised another $462. During the entire charity event, Primary 4 raised 2 times as much as Primary 1. What was the total amount raised by Primary 4?
|
Primary 4 (1) |
Primary 1 (2) |
Make p the same (2) x 2 = (3) |
Before |
6 u |
1 u |
2 u |
Change |
+ 348 |
+ 462 |
+ 924 |
After |
2 p |
1 p |
2 p |
(1) = (3)
6 u + 348 = 2 u + 924
6 u - 2 u = 924 - 348
4 u = 576
1 u = 576 ÷ 4 = 144
From (2)
1 p = 144 + 462 = 606
Total amount raised by Primary 4
= 2 p
= 2 x 606
= $1212
Answer: $1212