The number of dates Justin bought in May was 40% more than in April. In June, he bought 70% less dates than in May. If there were 290 more dates in April than June, how many dates did Justin buy in April?
| April |
May |
June |
| 5x10 |
7x10 |
|
| |
10x7 |
3x7 |
| 50 u |
70 u |
21 u |
100% + 40 = 140%
140% =
140100 =
75May : April = 7 : 5
100% - 70% = 30%
30% =
30100 =
310 June : May = 3 : 10
The number of dates in May is repeated. Make the number of dates in May is the same. LCM of 7 and 10 is 70.
Number of more dates in April than June
= 50 u - 21 u
= 29 u
29 u = 290
1 u = 290 ÷ 29 = 10
Number of dates that Justin bought in April
= 50 u
= 50 x 10
= 500
Answer(s): 500
