The number of plums Peter bought in February was 40% more than in January. In March, he bought 60% less plums than in February. If there were 66 less plums in March than January, how many plums did Peter buy in February?
| January |
February |
March |
| 5x5 |
7x5 |
|
| |
5x7 |
2x7 |
| 25 u |
35 u |
14 u |
100% + 40 = 140%
140% =
140100 =
75February : January = 7 : 5
100% - 60% = 40%
40% =
40100 =
25 March : February = 2 : 5
The number of plums in February is repeated. Make the number of plums in February is the same. LCM of 7 and 5 is 35.
Number of less plums in March than January
= 25 u - 14 u
= 11 u
11 u = 66
1 u = 66 ÷ 11 = 6
Number of plums that Peter bought in February
= 35 u
= 35 x 6
= 210
Answer(s): 210
