After using
15 of her pepper, Mrs Seah bought another 26 kg of pepper. As a result, Mrs Seah now has
65 as much pepper as what she had at first. How many kilograms of pepper did Mrs Seah have at first?
| |
Pepper |
Total |
| Before |
5 u |
5 u |
| Change 1 |
- 1 u |
|
| After 1 |
4 u |
|
| Change 2 |
+ 26 |
|
| After 2 |
4 u + 26 |
6 u |
Fraction of pepper left after using
15 of it
= 1 -
15 =
45 Amount of pepper left after using some = 4 u
Amount of pepper after buying 26 kg of pepper = 4 u + 26
4 u + 26 = 6 u
6 u - 4 u = 26
2 u = 26
1 u = 26 ÷ 2 = 13
Amount of pepper that Mrs Seah had at first
= 5 u
= 5 x 13
= 65 kg
Answer(s): 65 kg
