The number of lemons at a store was 40% more than the number of persimmons. After 20% of the persimmons were sold, there were 21 more lemons than persimmons. Find the total number of lemons and persimmons at the store at first.
| |
Lemons |
Persimmons |
More |
Total |
| Before |
7 u |
5 u |
|
12 u |
| Change |
|
- 1 u |
|
|
| After |
7 u |
4 u |
3 u |
|
Number of persimmons at first in percent = 100%
Number of lemons at first in percent
= 100% + 40%
= 140%
LemonsPersimmons =
140100 =
75Number of persimmons sold
= 20% x 5 u
=
20100 x 5 u
= 1 u
Number of more lemons than persimmons in the end
= 7 u - 4 u
= 3 u
3 u = 21
1 u = 21 ÷ 3 = 7
Total number of persimmons and lemons at first
= 7 u + 5 u
= 12 u
= 12 x 7
= 84
Answer(s): 84
