Kylie had an equal number of oranges and dates at first. She sold one-quarter of the dates and bought another 90 oranges. In the end, she had twice as many oranges as dates. Find the number of dates she had at first.
| |
Dates |
Oranges |
| Before |
4 u |
6 u - 90 |
| Change |
- 1 u |
+ 90 |
| After |
3 u |
6 u |
The number of oranges and dates at first is the same.
6 u - 90 = 4 u
6 u - 4 u = 90
2 u = 90
1 u = 90 ÷ 2 = 45
Number of dates that she had at first
= 4 u
= 4 x 45
= 180
Answer(s): 180
