David and Elijah shared equally a bunch of lychees. After David had eaten 38 of his lychees and Elijah had eaten 12 of his, Elijah had 3 times as many lychees left as David. How many lychees had each of them at first?
| |
David |
Elijah |
| Before |
1 u + 38 |
3 u + 12 |
| Change |
- 38 |
- 12 |
| After |
1 u |
3 u |
Number of lychees each had at first was the same.
3 u + 12 = 1 u + 38
3 u - 1 u = 38 - 12
2 u = 26
1 u = 26 ÷ 2 = 13
Number of lychees that they had each at first
= 1 u + 38
= 13 + 38
= 51
Answer(s): 51
