The number of plums Tom bought in March was 30% more than in February. In April, he bought 75% less plums than in March. If there were 243 more plums in February than April, how many plums did Tom buy in February?
| February |
March |
April |
| 10x4 |
13x4 |
|
| |
4x13 |
1x13 |
| 40 u |
52 u |
13 u |
100% + 30 = 130%
130% =
130100 =
1310March : February = 13 : 10
100% - 75% = 25%
25% =
25100 =
14 April : March = 1 : 4
The number of plums in March is repeated. Make the number of plums in March is the same. LCM of 13 and 4 is 52.
Number of more plums in February than April
= 40 u - 13 u
= 27 u
27 u = 243
1 u = 243 ÷ 27 = 9
Number of plums that Tom bought in February
= 40 u
= 40 x 9
= 360
Answer(s): 360
