After using
16 of her pepper, Mrs Hun bought another 30 kg of pepper. As a result, Mrs Hun now has
86 as much pepper as what she had at first. How many kilograms of pepper did Mrs Hun have at first?
| |
Pepper |
Total |
| Before |
6 u |
6 u |
| Change 1 |
- 1 u |
|
| After 1 |
5 u |
|
| Change 2 |
+ 30 |
|
| After 2 |
5 u + 30 |
8 u |
Fraction of pepper left after using
16 of it
= 1 -
16 =
56 Amount of pepper left after using some = 5 u
Amount of pepper after buying 30 kg of pepper = 5 u + 30
5 u + 30 = 8 u
8 u - 5 u = 30
3 u = 30
1 u = 30 ÷ 3 = 10
Amount of pepper that Mrs Hun had at first
= 6 u
= 6 x 10
= 60 kg
Answer(s): 60 kg
