PSLE Luis had $22 more than Tammy at first. After Luis gave some of his money to Tammy, he had $100 less than Tammy. How much money did Luis give to Tammy?
|
Luis |
Tammy |
Before |
1 u + 39 + 22 = 1 u + 61 |
1 u + 39
|
Change |
- 61 |
+ 61 |
After |
1 u |
1 u + 39 + 61 = 1 u + 100 |
At first, Luis had $22 more than Tammy. After giving to Tammy, he had $100 less than Tammy. This means he gave Tammy more than $22.
Additional amount that Luis gave to Tammy
= (100 - 22) ÷ 2
= 78 ÷ 2
= $39
Total amount that Luis gave to Tammy
= 39 + 22
= $61
Answer(s): $61