Fred and David shared equally a bunch of rambutans. After Fred had eaten 27 of his rambutans and David had eaten 15 of his, David had 4 times as many rambutans left as Fred. How many rambutans had each of them at first?
| |
Fred |
David |
| Before |
1 u + 27 |
4 u + 15 |
| Change |
- 27 |
- 15 |
| After |
1 u |
4 u |
Number of rambutans each had at first was the same.
4 u + 15 = 1 u + 27
4 u - 1 u = 27 - 15
3 u = 12
1 u = 12 ÷ 3 = 4
Number of rambutans that they had each at first
= 1 u + 27
= 4 + 27
= 31
Answer(s): 31
