Eight hours ago, a grocer started his day with some lemons and chikoos in the ratio of 8 : 7. There were 210 chikoos. Some of the lemons were bought by Jen. As a result, the number of lemons became
45 of the chikoos.
- How many lemons did the grocer have at first?
- How many chikoos did the grocer have to sell in order to have an equal number of lemons and chikoos?
|
Lemons |
Chikoos |
Before |
8x5 = 40 u |
7x5 = 35 u |
Change |
- ? |
|
After |
4x7 = 28 u |
5x7 = 35 u |
(a)
The number of chikoos remains unchanged. Make the number of chikoos the same. LCM of 7 and 5 is 35.
35 u = 210
1 u = 210 ÷ 35 = 6
Number of lemons that the grocer had at first
= 40 u
= 40 x 6
= 240
(b)
Number of chikoos that the grocer had to sell to have an equal number of lemons and chikoos
= 35 u - 28 u
= 7 u
= 7 x 6
= 42
Answer(s): (a) 240; (b) 42