Barbara had an equal number of apples and limes at first. She sold one-quarter of the limes and bought another 99 apples. In the end, she had five times as many apples as limes. Find the number of limes she had at first.
| |
Limes |
Apples |
| Before |
4 u |
15 u - 99 |
| Change |
- 1 u |
+ 99 |
| After |
3 u |
15 u |
The number of apples and limes at first is the same.
15 u - 99 = 4 u
15 u - 4 u = 99
11 u = 99
1 u = 99 ÷ 11 = 9
Number of limes that she had at first
= 4 u
= 4 x 9
= 36
Answer(s): 36
