The number of dragon fruits Fred bought in August was 40% more than in July. In September, he bought 50% less dragon fruits than in August. If there were 27 more dragon fruits in July than September, how many dragon fruits did Fred buy in July?
| July |
August |
September |
| 5x2 |
7x2 |
|
| |
2x7 |
1x7 |
| 10 u |
14 u |
7 u |
100% + 40 = 140%
140% =
140100 =
75August : July = 7 : 5
100% - 50% = 50%
50% =
50100 =
12 September : August = 1 : 2
The number of dragon fruits in August is repeated. Make the number of dragon fruits in August is the same. LCM of 7 and 2 is 14.
Number of more dragon fruits in July than September
= 10 u - 7 u
= 3 u
3 u = 27
1 u = 27 ÷ 3 = 9
Number of dragon fruits that Fred bought in July
= 10 u
= 10 x 9
= 90
Answer(s): 90
