After using
111 of her chilli powder, Mrs Kok bought another 10 kg of chilli powder. As a result, Mrs Kok now has
1211 as much chilli powder as what she had at first. How many kilograms of chilli powder did Mrs Kok have at first?
| |
Chilli Powder |
Total |
| Before |
11 u |
11 u |
| Change 1 |
- 1 u |
|
| After 1 |
10 u |
|
| Change 2 |
+ 10 |
|
| After 2 |
10 u + 10 |
12 u |
Fraction of chilli powder left after using
111 of it
= 1 -
111 =
1011 Amount of chilli powder left after using some = 10 u
Amount of chilli powder after buying 10 kg of chilli powder = 10 u + 10
10 u + 10 = 12 u
12 u - 10 u = 10
2 u = 10
1 u = 10 ÷ 2 = 5
Amount of chilli powder that Mrs Kok had at first
= 11 u
= 11 x 5
= 55 kg
Answer(s): 55 kg
