Barbara had an equal number of apples and pears at first. She sold one-quarter of the pears and bought another 55 apples. In the end, she had thrice as many apples as pears. Find the number of pears she had at first.
| |
Pears |
Apples |
| Before |
4 u |
9 u - 55 |
| Change |
- 1 u |
+ 55 |
| After |
3 u |
9 u |
The number of apples and pears at first is the same.
9 u - 55 = 4 u
9 u - 4 u = 55
5 u = 55
1 u = 55 ÷ 5 = 11
Number of pears that she had at first
= 4 u
= 4 x 11
= 44
Answer(s): 44
