At a mart, the ratio of dragon fruits to guavas was 3 : 10. After Lucy bought three-fifths of the guavas, there was a total of 28 dragon fruits and guavas left at the mart. How many fruits were there at first?
| |
Dragon Fruits |
Guavas |
Total |
Comparing dragon fruits
and guavas at first |
3x1 =
3 u |
10x1 =
10 u |
13 u |
Before |
|
5x2 =
10 u |
|
Change |
|
- 3x2 =
- 6 u |
|
After |
3 u |
2x2 =
4 u |
28 |
The number of guavas at first is repeated. Make the number of guavas at first the same. LCM of 10 and 5 is 10.
Total number of fruits left
= 3 u + 4 u
= 7 u
7 u = 28
1 u = 28 ÷ 7 = 4
Number of fruits at first
= 3 u + 10 u
= 13 u
= 13 x 4
= 52
Answer(s): 52
