After using
14 of her rice flour, Mrs Neo bought another 24 kg of rice flour. As a result, Mrs Neo now has
114 as much rice flour as what she had at first. How many kilograms of rice flour did Mrs Neo have at first?
| |
Rice Flour |
Total |
| Before |
4 u |
4 u |
| Change 1 |
- 1 u |
|
| After 1 |
3 u |
|
| Change 2 |
+ 24 |
|
| After 2 |
3 u + 24 |
11 u |
Fraction of rice flour left after using
14 of it
= 1 -
14 =
34 Amount of rice flour left after using some = 3 u
Amount of rice flour after buying 24 kg of rice flour = 3 u + 24
3 u + 24 = 11 u
11 u - 3 u = 24
8 u = 24
1 u = 24 ÷ 8 = 3
Amount of rice flour that Mrs Neo had at first
= 4 u
= 4 x 3
= 12 kg
Answer(s): 12 kg
