There were 136 mangosteens and oranges in a stall at first. After
16 of the mangosteens and
12 of the oranges were sold, there were a total of 106 mangosteens and oranges now. How many mangosteens are there now?
| |
Mangosteens |
Oranges |
Total |
| Before |
6 u |
2 p |
136 |
| Change |
- 1 u |
- 1 p |
- 30 |
| After |
5 u |
1 p |
106 |
Total number of mangosteens and oranges sold
= 136 - 106
= 30
5 u + 1 p = 106
1 p = 106 - 5 u --- (1)
1 u + 1 p = 30
1 p = 30 - 1 u --- (2)
(2) = (1)
30 - 1 u = 106 - 5 u
5 u - 1 u = 106 - 30
4 u = 76
1 u = 76 ÷ 4 = 19
Number of mangosteens now
= 5 u
= 5 x 19
= 95
Answer(s): 95
