The ratio of lemons to persimmons is 3 : 4. If 203 persimmons are added, the ratio of lemons to persimmons will be 1 : 11. How many lemons are there?
|
Lemons |
Persimmons |
Before |
3x1 = 3 u |
4x1 = 4 u |
Change |
|
+ 203 |
After |
1x3 = 3 u |
11x3 = 33 u |
The number of lemons at first and in the end remains unchanged. Make the number of lemons at first and in the end the same. LCM of 3 and 1 is 3.
Number of persimmons added
= 33 u - 4 u
= 29 u
29 u = 203
1 u = 203 ÷ 29 = 7
Number of lemons
= 3 u
= 3 x 7
= 21
Answer(s): 21