Irene had an equal number of mandarin oranges and papayas at first. She sold one-third of the papayas and bought another 33 mandarin oranges. In the end, she had thrice as many mandarin oranges as papayas. Find the number of papayas she had at first.
| |
Papayas |
Mandarin Oranges |
| Before |
3 u |
6 u - 33 |
| Change |
- 1 u |
+ 33 |
| After |
2 u |
6 u |
The number of mandarin oranges and papayas at first is the same.
6 u - 33 = 3 u
6 u - 3 u = 33
3 u = 33
1 u = 33 ÷ 3 = 11
Number of papayas that she had at first
= 3 u
= 3 x 11
= 33
Answer(s): 33
