A fruit seller had mangosteens and chikoos. The ratio of mangosteens to chikoos was 3 : 7. After
45 of the mangosteens and 87 chikoos were sold, there were 2 times as many mangosteens as chikoos left. How many mangosteens and chikoos were there at first?
| |
Mangosteens |
Chikoos |
Total |
| Before |
3 u |
7 u |
10 u |
| Change |
- 2.4 u |
- 87 |
|
| After |
0.6 u |
1.2 u |
|
Number of mangosteens sold
=
45 x 3 u
= 2.4 u
Number of mangosteens left
= 3 u - 2.4 u
= 0.6 u
Number of chikoos left
= 2 x 0.6 u
= 1.2 u
Number of chikoos sold
= 7 u - 1.2 u
= 5.8 u
5.8 u = 87
1 u = 87 ÷ 5.8 = 15
Number of mangosteens and chikoos at first
= 3 u + 7 u
= 10 u
= 10 x 15
= 150
Answer(s): 150
