Billy had 195 apples and 88 mangoes at first. He used
45 of the apples and
511 of the mangoes. He then bought some more mangoes. In the end,
14 of the fruits he had left were apples. How many mangoes did he buy?
| |
Apples |
Mangoes |
Total |
| Before |
195 |
88 |
|
| Change 1 |
- 156 |
- 40 |
|
| After 1 |
39 |
48 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
3 u |
4 u |
Number of apples that Billy used
=
45 x 195
= 156
Number of apples that Billy had left
= 195 - 156
= 39
Number of mangoes that Billy used
=
511 x 88
= 40
Number of mangoes that Billy had left
= 88 - 40
= 48
Fraction of the fruits left that were mangoes
= 1 -
14=
34 Number of apples left = 1 u = 39
Number of mangoes left in the end
= 3 u
= 3 x 39
= 117
Number of mangoes that Billy bought
= 117 - 48
= 69
Answer(s): 69
