Julian had 55 oranges and 50 persimmons at first. He used
35 of the oranges and
710 of the persimmons. He then bought some more persimmons. In the end,
18 of the fruits he had left were oranges. How many persimmons did he buy?
| |
Oranges |
Persimmons |
Total |
| Before |
55 |
50 |
|
| Change 1 |
- 33 |
- 35 |
|
| After 1 |
22 |
15 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
7 u |
8 u |
Number of oranges that Julian used
=
35 x 55
= 33
Number of oranges that Julian had left
= 55 - 33
= 22
Number of persimmons that Julian used
=
710 x 50
= 35
Number of persimmons that Julian had left
= 50 - 35
= 15
Fraction of the fruits left that were persimmons
= 1 -
18=
78 Number of oranges left = 1 u = 22
Number of persimmons left in the end
= 7 u
= 7 x 22
= 154
Number of persimmons that Julian bought
= 154 - 15
= 139
Answer(s): 139
