A store owner has 40 more kiwis than starfruits. After he sold 90% of the kiwis and 40% of the starfruits, he is left with 6 more starfruits than kiwis. What fraction of the fruits left were starfruits?
| |
Kiwis |
Starfruits |
Comparing kiwis
and starfruits at first |
40 more |
|
| Before |
10x1 =
10 u |
+ 40 |
5x2 =
10 u |
| Change |
- 9x1 =
- 9 u |
- 36 |
- 2x2 =
- 4 u |
| After |
1x1 =
1 u |
+ 4 |
3x2 =
6 u |
Comparing kiwis
and starfruits in the end |
|
6 more |
90% =
90100 =
910 90% x 40 =
910 x 40 = 36
40 - 36 = 4
40% =
40100 =
25 The number of starfruits is 6 more than the number of kiwis in the end. So, if another 6 kiwis are added, the number of kiwis and starfruits in the end will be the same.
1 u + 4 + 6 = 6 u
1 u + 10 = 6 u
6 u - 1 u = 10
5 u = 10
1 u = 10 ÷ 5 = 2
Number of starfruits left
= 6 u
= 6 x 2
= 12
Total number of fruits left
= 1 u + 4 + 6 u
= 7 u + 4
= 7 x 2 + 4
= 14 + 4
= 18
Starfruits leftTotal fruits left =
1218 =
23 Answer(s):
23 
