Eight hours ago, a fruit seller started his day with some chikoos and persimmons in the ratio of 7 : 2. There were 40 persimmons. Some of the chikoos were bought by Ivory. As a result, the number of chikoos became
45 of the persimmons.
- How many chikoos did the fruit seller have left?
- How many chikoos did the fruit seller have to buy in order to have an equal number of chikoos and persimmons?
|
Chikoos |
Persimmons |
Before |
7x5 = 35 u |
2x5 = 10 u |
Change |
- ? |
|
After |
4x2 = 8 u |
5x2 = 10 u |
(a)
The number of persimmons remains unchanged. Make the number of persimmons the same. LCM of 2 and 5 is 10.
10 u = 40
1 u = 40 ÷ 10 = 4
Number of chikoos that the fruit seller had left
= 8 u
= 8 x 4
= 32
(b)
Number of chikoos that the fruit seller had to buy to have an equal number of chikoos and persimmons
= 10 u - 8 u
= 2 u
= 2 x 4
= 8
Answer(s): (a) 32; (b) 8