Luis had 140 kiwis and 195 oranges at first. He used
45 of the kiwis and
35 of the oranges. He then bought some more oranges. In the end,
19 of the fruits he had left were kiwis. How many oranges did he buy?
| |
Kiwis |
Oranges |
Total |
| Before |
140 |
195 |
|
| Change 1 |
- 112 |
- 117 |
|
| After 1 |
28 |
78 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
8 u |
9 u |
Number of kiwis that Luis used
=
45 x 140
= 112
Number of kiwis that Luis had left
= 140 - 112
= 28
Number of oranges that Luis used
=
35 x 195
= 117
Number of oranges that Luis had left
= 195 - 117
= 78
Fraction of the fruits left that were oranges
= 1 -
19=
89 Number of kiwis left = 1 u = 28
Number of oranges left in the end
= 8 u
= 8 x 28
= 224
Number of oranges that Luis bought
= 224 - 78
= 146
Answer(s): 146
