At a supermarket, there were
13 as many mangosteens as dragonfruits. After 4 mangosteens and 24 dragonfruits were sold, the number of mangosteens became the same as the number of dragonfruits. How many fruits were at the supermarket in the end?
| |
Mangosteens |
Dragonfruits |
| Before |
1 u |
3 u |
| Change |
- 4 |
- 24 |
| After |
1 u - 4 |
3 u - 24 |
Number of mangosteens and dragonfruits in the end is the same.
3 u - 24 = 1 u - 4
3 u - 1 u = 24 - 4
2 u = 20
1 u = 20 ÷ 2 = 10
Number of fruits in the end
= 1 u - 4 + 3 u - 24
= 4 u - 28
= 4 x 10 - 28
= 40 - 28
= 12
Answer(s): 12
