Luis had 195 persimmons and 77 starfruits at first. He used
45 of the persimmons and
611 of the starfruits. He then bought some more starfruits. In the end,
17 of the fruits he had left were persimmons. How many starfruits did he buy?
| |
Persimmons |
Starfruits |
Total |
| Before |
195 |
77 |
|
| Change 1 |
- 156 |
- 42 |
|
| After 1 |
39 |
35 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
6 u |
7 u |
Number of persimmons that Luis used
=
45 x 195
= 156
Number of persimmons that Luis had left
= 195 - 156
= 39
Number of starfruits that Luis used
=
611 x 77
= 42
Number of starfruits that Luis had left
= 77 - 42
= 35
Fraction of the fruits left that were starfruits
= 1 -
17=
67 Number of persimmons left = 1 u = 39
Number of starfruits left in the end
= 6 u
= 6 x 39
= 234
Number of starfruits that Luis bought
= 234 - 35
= 199
Answer(s): 199
