Riordan had chikoos and mangoes. The ratio of chikoos to mangoes was 7 : 4. After
12 of the chikoos and 70 mangoes were sold, there were 7 times as many chikoos as mangoes left. How many chikoos and mangoes were sold?
| |
Chikoos |
Mangoes |
Comparing chikoos
and mangoes at first |
7x2 =
14 u |
4x2 =
8 u |
| Before |
2x7 =
14 u |
|
| Change |
- 1x7 =
- 7 u |
- 70 |
| After |
1x7 =
7 u |
|
Comparing chikoos
and mangoes in the end |
7 u |
1 u |
The number of chikoos at first is repeated. Make the number of chikoos at first the same. LCM of 7 and 2 is 14.
Number of mangoes sold
= 8 u - 1 u
= 7 u
7 u = 70
1 u = 70 ÷ 7 = 10
Number of chikoos and mangoes sold
= 7 u + 70
= 7 x 10 + 70
= 70 + 70
= 140
Answer(s): 140
