The number of guavas Ivan bought in September was 40% more than in August. In October, he bought 60% less guavas than in September. If there were 55 less guavas in October than August, how many guavas did Ivan buy in September?
| August |
September |
October |
| 5x5 |
7x5 |
|
| |
5x7 |
2x7 |
| 25 u |
35 u |
14 u |
100% + 40 = 140%
140% =
140100 =
75September : August = 7 : 5
100% - 60% = 40%
40% =
40100 =
25 October : September = 2 : 5
The number of guavas in September is repeated. Make the number of guavas in September is the same. LCM of 7 and 5 is 35.
Number of less guavas in October than August
= 25 u - 14 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Number of guavas that Ivan bought in September
= 35 u
= 35 x 5
= 175
Answer(s): 175
