PSLE Carl had $21 more than Risa at first. After Carl gave some of his money to Risa, he had $85 less than Risa. How much money did Carl give to Risa?
|
Carl |
Risa |
Before |
1 u + 32 + 21 = 1 u + 53 |
1 u + 32
|
Change |
- 53 |
+ 53 |
After |
1 u |
1 u + 32 + 53 = 1 u + 85 |
At first, Carl had $21 more than Risa. After giving to Risa, he had $85 less than Risa. This means he gave Risa more than $21.
Additional amount that Carl gave to Risa
= (85 - 21) ÷ 2
= 64 ÷ 2
= $32
Total amount that Carl gave to Risa
= 32 + 21
= $53
Answer(s): $53