The number of limes Tim bought in October was 40% more than in September. In November, he bought 75% less limes than in October. If there were 39 more limes in September than November, how many limes did Tim buy in September?
| September |
October |
November |
| 5x4 |
7x4 |
|
| |
4x7 |
1x7 |
| 20 u |
28 u |
7 u |
100% + 40 = 140%
140% =
140100 =
75October : September = 7 : 5
100% - 75% = 25%
25% =
25100 =
14 November : October = 1 : 4
The number of limes in October is repeated. Make the number of limes in October is the same. LCM of 7 and 4 is 28.
Number of more limes in September than November
= 20 u - 7 u
= 13 u
13 u = 39
1 u = 39 ÷ 13 = 3
Number of limes that Tim bought in September
= 20 u
= 20 x 3
= 60
Answer(s): 60
