The ratio of chikoos to persimmons is 3 : 8. If 20 persimmons are added, the ratio of chikoos to persimmons will be 3 : 10. How many less chikoos than persimmons are there in the end?
| |
Chikoos |
Persimmons |
| Before |
3 u |
8 u |
| Change |
|
+ 20 |
| After |
3 u |
10 u |
The number of chikoos at first and in the end remains unchanged.
Number of persimmons added
= 10 u - 8 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Number of less chikoos than persimmons in the end
= 10 u - 3 u
= 7 u
= 7 x 10
= 70
Answer(s): 70
