Ben had 84 passion fruits and 120 lemons at first. He used
56 of the passion fruits and
78 of the lemons. He then bought some more lemons. In the end,
110 of the fruits he had left were passion fruits. How many lemons did he buy?
| |
Passion Fruits |
Lemons |
Total |
| Before |
84 |
120 |
|
| Change 1 |
- 70 |
- 105 |
|
| After 1 |
14 |
15 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
9 u |
10 u |
Number of passion fruits that Ben used
=
56 x 84
= 70
Number of passion fruits that Ben had left
= 84 - 70
= 14
Number of lemons that Ben used
=
78 x 120
= 105
Number of lemons that Ben had left
= 120 - 105
= 15
Fraction of the fruits left that were lemons
= 1 -
110=
910 Number of passion fruits left = 1 u = 14
Number of lemons left in the end
= 9 u
= 9 x 14
= 126
Number of lemons that Ben bought
= 126 - 15
= 111
Answer(s): 111
