Liam had 119 apples and 130 mangosteens at first. He used
37 of the apples and
310 of the mangosteens. He then bought some more mangosteens. In the end,
19 of the fruits he had left were apples. How many mangosteens did he buy?
| |
Apples |
Mangosteens |
Total |
| Before |
119 |
130 |
|
| Change 1 |
- 51 |
- 39 |
|
| After 1 |
68 |
91 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
8 u |
9 u |
Number of apples that Liam used
=
37 x 119
= 51
Number of apples that Liam had left
= 119 - 51
= 68
Number of mangosteens that Liam used
=
310 x 130
= 39
Number of mangosteens that Liam had left
= 130 - 39
= 91
Fraction of the fruits left that were mangosteens
= 1 -
19=
89 Number of apples left = 1 u = 68
Number of mangosteens left in the end
= 8 u
= 8 x 68
= 544
Number of mangosteens that Liam bought
= 544 - 91
= 453
Answer(s): 453
