The number of papayas Tom bought in September was 30% more than in August. In October, he bought 75% less papayas than in September. If there were 243 less papayas in October than August, how many papayas did Tom buy in September?
| August |
September |
October |
| 10x4 |
13x4 |
|
| |
4x13 |
1x13 |
| 40 u |
52 u |
13 u |
100% + 30 = 130%
130% =
130100 =
1310September : August = 13 : 10
100% - 75% = 25%
25% =
25100 =
14 October : September = 1 : 4
The number of papayas in September is repeated. Make the number of papayas in September is the same. LCM of 13 and 4 is 52.
Number of less papayas in October than August
= 40 u - 13 u
= 27 u
27 u = 243
1 u = 243 ÷ 27 = 9
Number of papayas that Tom bought in September
= 52 u
= 52 x 9
= 468
Answer(s): 468
