The number of dragon fruits Zeph bought in August was 10% more than in July. In September, he bought 70% less dragon fruits than in August. If there were 469 more dragon fruits in July than September, how many dragon fruits did Zeph buy in July?
| July |
August |
September |
| 10x10 |
11x10 |
|
| |
10x11 |
3x11 |
| 100 u |
110 u |
33 u |
100% + 10 = 110%
110% =
110100 =
1110August : July = 11 : 10
100% - 70% = 30%
30% =
30100 =
310 September : August = 3 : 10
The number of dragon fruits in August is repeated. Make the number of dragon fruits in August is the same. LCM of 11 and 10 is 110.
Number of more dragon fruits in July than September
= 100 u - 33 u
= 67 u
67 u = 469
1 u = 469 ÷ 67 = 7
Number of dragon fruits that Zeph bought in July
= 100 u
= 100 x 7
= 700
Answer(s): 700
