Paul had 121 pomegranates and 100 chikoos at first. He used
411 of the pomegranates and
310 of the chikoos. He then bought some more chikoos. In the end,
110 of the fruits he had left were pomegranates. How many chikoos did he buy?
| |
Pomegranates |
Chikoos |
Total |
| Before |
121 |
100 |
|
| Change 1 |
- 44 |
- 30 |
|
| After 1 |
77 |
70 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
9 u |
10 u |
Number of pomegranates that Paul used
=
411 x 121
= 44
Number of pomegranates that Paul had left
= 121 - 44
= 77
Number of chikoos that Paul used
=
310 x 100
= 30
Number of chikoos that Paul had left
= 100 - 30
= 70
Fraction of the fruits left that were chikoos
= 1 -
110=
910 Number of pomegranates left = 1 u = 77
Number of chikoos left in the end
= 9 u
= 9 x 77
= 693
Number of chikoos that Paul bought
= 693 - 70
= 623
Answer(s): 623
