PSLE Glen had $18 more than Risa at first. After Glen gave some of his money to Risa, he had $42 less than Risa. How much money did Glen give to Risa?
|
Glen |
Risa |
Before |
1 u + 12 + 18 = 1 u + 30 |
1 u + 12
|
Change |
- 30 |
+ 30 |
After |
1 u |
1 u + 12 + 30 = 1 u + 42 |
At first, Glen had $18 more than Risa. After giving to Risa, he had $42 less than Risa. This means he gave Risa more than $18.
Additional amount that Glen gave to Risa
= (42 - 18) ÷ 2
= 24 ÷ 2
= $12
Total amount that Glen gave to Risa
= 12 + 18
= $30
Answer(s): $30