The number of oranges Brandon bought in October was 20% more than in September. In November, he bought 75% less oranges than in October. If there were 63 less oranges in November than September, how many oranges did Brandon buy in October?
| September |
October |
November |
| 5x2 |
6x2 |
|
| |
4x3 |
1x3 |
| 10 u |
12 u |
3 u |
100% + 20 = 120%
120% =
120100 =
65October : September = 6 : 5
100% - 75% = 25%
25% =
25100 =
14 November : October = 1 : 4
The number of oranges in October is repeated. Make the number of oranges in October is the same. LCM of 6 and 4 is 12.
Number of less oranges in November than September
= 10 u - 3 u
= 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Number of oranges that Brandon bought in October
= 12 u
= 12 x 9
= 108
Answer(s): 108
