At a stall, the ratio of tomatoes to coconuts was 7 : 10. After Barbara bought three-fifths of the coconuts, there was a total of 55 tomatoes and coconuts left at the stall. How many fruits were there at first?
| |
Tomatoes |
Coconuts |
Total |
Comparing tomatoes
and coconuts at first |
7x1 =
7 u |
10x1 =
10 u |
17 u |
Before |
|
5x2 =
10 u |
|
Change |
|
- 3x2 =
- 6 u |
|
After |
7 u |
2x2 =
4 u |
55 |
The number of coconuts at first is repeated. Make the number of coconuts at first the same. LCM of 10 and 5 is 10.
Total number of fruits left
= 7 u + 4 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Number of fruits at first
= 7 u + 10 u
= 17 u
= 17 x 5
= 85
Answer(s): 85
