After using
14 of her sugar, Mrs Ee bought another 14 kg of sugar. As a result, Mrs Ee now has
104 as much sugar as what she had at first. How many kilograms of sugar did Mrs Ee have at first?
| |
Sugar |
Total |
| Before |
4 u |
4 u |
| Change 1 |
- 1 u |
|
| After 1 |
3 u |
|
| Change 2 |
+ 14 |
|
| After 2 |
3 u + 14 |
10 u |
Fraction of sugar left after using
14 of it
= 1 -
14 =
34 Amount of sugar left after using some = 3 u
Amount of sugar after buying 14 kg of sugar = 3 u + 14
3 u + 14 = 10 u
10 u - 3 u = 14
7 u = 14
1 u = 14 ÷ 7 = 2
Amount of sugar that Mrs Ee had at first
= 4 u
= 4 x 2
= 8 kg
Answer(s): 8 kg
