John had 185 apples and 168 lemons at first. He used
45 of the apples and
37 of the lemons. He then bought some more lemons. In the end,
110 of the fruits he had left were apples. How many lemons did he buy?
| |
Apples |
Lemons |
Total |
| Before |
185 |
168 |
|
| Change 1 |
- 148 |
- 72 |
|
| After 1 |
37 |
96 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
9 u |
10 u |
Number of apples that John used
=
45 x 185
= 148
Number of apples that John had left
= 185 - 148
= 37
Number of lemons that John used
=
37 x 168
= 72
Number of lemons that John had left
= 168 - 72
= 96
Fraction of the fruits left that were lemons
= 1 -
110=
910 Number of apples left = 1 u = 37
Number of lemons left in the end
= 9 u
= 9 x 37
= 333
Number of lemons that John bought
= 333 - 96
= 237
Answer(s): 237
