After using
16 of her chilli powder, Mrs Yong bought another 30 kg of chilli powder. As a result, Mrs Yong now has
106 as much chilli powder as what she had at first. How many kilograms of chilli powder did Mrs Yong have at first?
| |
Chilli Powder |
Total |
| Before |
6 u |
6 u |
| Change 1 |
- 1 u |
|
| After 1 |
5 u |
|
| Change 2 |
+ 30 |
|
| After 2 |
5 u + 30 |
10 u |
Fraction of chilli powder left after using
16 of it
= 1 -
16 =
56 Amount of chilli powder left after using some = 5 u
Amount of chilli powder after buying 30 kg of chilli powder = 5 u + 30
5 u + 30 = 10 u
10 u - 5 u = 30
5 u = 30
1 u = 30 ÷ 5 = 6
Amount of chilli powder that Mrs Yong had at first
= 6 u
= 6 x 6
= 36 kg
Answer(s): 36 kg
