The number of dragon fruits Lee bought in August was 20% more than in July. In September, he bought 75% less dragon fruits than in August. If there were 77 more dragon fruits in July than September, how many dragon fruits did Lee buy in July?
| July |
August |
September |
| 5x2 |
6x2 |
|
| |
4x3 |
1x3 |
| 10 u |
12 u |
3 u |
100% + 20 = 120%
120% =
120100 =
65August : July = 6 : 5
100% - 75% = 25%
25% =
25100 =
14 September : August = 1 : 4
The number of dragon fruits in August is repeated. Make the number of dragon fruits in August is the same. LCM of 6 and 4 is 12.
Number of more dragon fruits in July than September
= 10 u - 3 u
= 7 u
7 u = 77
1 u = 77 ÷ 7 = 11
Number of dragon fruits that Lee bought in July
= 10 u
= 10 x 11
= 110
Answer(s): 110
