Julian had 135 starfruits and 185 mangoes at first. He used
35 of the starfruits and
45 of the mangoes. He then bought some more mangoes. In the end,
18 of the fruits he had left were starfruits. How many mangoes did he buy?
| |
Starfruits |
Mangoes |
Total |
| Before |
135 |
185 |
|
| Change 1 |
- 81 |
- 148 |
|
| After 1 |
54 |
37 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
7 u |
8 u |
Number of starfruits that Julian used
=
35 x 135
= 81
Number of starfruits that Julian had left
= 135 - 81
= 54
Number of mangoes that Julian used
=
45 x 185
= 148
Number of mangoes that Julian had left
= 185 - 148
= 37
Fraction of the fruits left that were mangoes
= 1 -
18=
78 Number of starfruits left = 1 u = 54
Number of mangoes left in the end
= 7 u
= 7 x 54
= 378
Number of mangoes that Julian bought
= 378 - 37
= 341
Answer(s): 341
