Shop N had 57 kg of chilli powder and Shop P had 129 kg of chilli powder. After both shops sold an equal amount of chilli powder, Shop N had
25 as much chilli powder as Shop P. How much chilli powder did both shops sell?
| |
Shop N |
Shop P |
Difference |
| Before |
57 |
129 |
72 |
| Change |
- ? |
- ? |
|
| After |
2 u |
5 u |
3 u |
The difference between the amount of chilli powder at first and in the end remains unchanged.
Difference in the mass of chilli powder in the end
= 5 u - 2 u
= 3 u
3 u = 72
1 u = 72 ÷ 3 = 24
Mass of chilli powder in Shop N in the end
= 2 u
= 2 x 24
= 48 kg
Mass of chilli powder that each shop sold
= 57 - 48
= 9 kg
Amount of chilli powder that both shops sold
= 2 x 9
= 18 kg
Answer(s): 18 kg
