Sean had chikoos and mangosteens. The ratio of chikoos to mangosteens was 9 : 2. After
34 of the chikoos and 28 mangosteens were sold, there were 9 times as many chikoos as mangosteens left. How many chikoos and mangosteens were sold?
| |
Chikoos |
Mangosteens |
Comparing chikoos
and mangosteens at first |
9x4 =
36 u |
2x4 =
8 u |
| Before |
4x9 =
36 u |
|
| Change |
- 3x9 =
- 27 u |
- 28 |
| After |
1x9 =
9 u |
|
Comparing chikoos
and mangosteens in the end |
9 u |
1 u |
The number of chikoos at first is repeated. Make the number of chikoos at first the same. LCM of 9 and 4 is 36.
Number of mangosteens sold
= 8 u - 1 u
= 7 u
7 u = 28
1 u = 28 ÷ 7 = 4
Number of chikoos and mangosteens sold
= 27 u + 28
= 27 x 4 + 28
= 108 + 28
= 136
Answer(s): 136
