Gabriel had 110 oranges and 124 starfruits at first. He used
35 of the oranges and
34 of the starfruits. He then bought some more starfruits. In the end,
12 of the fruits he had left were oranges. How many starfruits did he buy?
| |
Oranges |
Starfruits |
Total |
| Before |
110 |
124 |
|
| Change 1 |
- 66 |
- 93 |
|
| After 1 |
44 |
31 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
1 u |
2 u |
Number of oranges that Gabriel used
=
35 x 110
= 66
Number of oranges that Gabriel had left
= 110 - 66
= 44
Number of starfruits that Gabriel used
=
34 x 124
= 93
Number of starfruits that Gabriel had left
= 124 - 93
= 31
Fraction of the fruits left that were starfruits
= 1 -
12=
12 Number of oranges left = 1 u = 44
Number of starfruits left in the end
= 1 u
= 1 x 44
= 44
Number of starfruits that Gabriel bought
= 44 - 31
= 13
Answer(s): 13
