Rael had 162 lemons and 184 mangoes at first. He used
59 of the lemons and
58 of the mangoes. He then bought some more mangoes. In the end,
15 of the fruits he had left were lemons. How many mangoes did he buy?
| |
Lemons |
Mangoes |
Total |
| Before |
162 |
184 |
|
| Change 1 |
- 90 |
- 115 |
|
| After 1 |
72 |
69 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
4 u |
5 u |
Number of lemons that Rael used
=
59 x 162
= 90
Number of lemons that Rael had left
= 162 - 90
= 72
Number of mangoes that Rael used
=
58 x 184
= 115
Number of mangoes that Rael had left
= 184 - 115
= 69
Fraction of the fruits left that were mangoes
= 1 -
15=
45 Number of lemons left = 1 u = 72
Number of mangoes left in the end
= 4 u
= 4 x 72
= 288
Number of mangoes that Rael bought
= 288 - 69
= 219
Answer(s): 219
