At a stall, the ratio of coconuts to tomatoes was 5 : 9. After Natalie bought three-fifths of the tomatoes, there was a total of 129 coconuts and tomatoes left at the stall. How many fruits were there at first?
| |
Coconuts |
Tomatoes |
Total |
Comparing coconuts
and tomatoes at first |
5x5 =
25 u |
9x5 =
45 u |
70 u |
Before |
|
5x9 =
45 u |
|
Change |
|
- 3x9 =
- 27 u |
|
After |
25 u |
2x9 =
18 u |
129 |
The number of tomatoes at first is repeated. Make the number of tomatoes at first the same. LCM of 9 and 5 is 45.
Total number of fruits left
= 25 u + 18 u
= 43 u
43 u = 129
1 u = 129 ÷ 43 = 3
Number of fruits at first
= 25 u + 45 u
= 70 u
= 70 x 3
= 210
Answer(s): 210
