After using
38 of her flour, Mrs Chua bought another 24 kg of flour. As a result, Mrs Chua now has
118 as much flour as what she had at first. How many kilograms of flour did Mrs Chua have at first?
| |
Flour |
Total |
| Before |
8 u |
8 u |
| Change 1 |
- 1 u |
|
| After 1 |
5 u |
|
| Change 2 |
+ 24 |
|
| After 2 |
5 u + 24 |
11 u |
Fraction of flour left after using
38 of it
= 1 -
38 =
58 Amount of flour left after using some = 5 u
Amount of flour after buying 24 kg of flour = 5 u + 24
5 u + 24 = 11 u
11 u - 5 u = 24
6 u = 24
1 u = 24 ÷ 6 = 4
Amount of flour that Mrs Chua had at first
= 8 u
= 8 x 4
= 32 kg
Answer(s): 32 kg
