Shop M had 70 kg of pepper and Shop N had 142 kg of pepper. After both shops sold an equal amount of pepper, Shop M had
25 as much pepper as Shop N. How much pepper did both shops sell?
|
Shop M |
Shop N |
Difference |
Before |
70 |
142 |
72 |
Change |
- ? |
- ? |
|
After |
2 u |
5 u |
3 u |
The difference between the amount of pepper at first and in the end remains unchanged.
Difference in the mass of pepper in the end
= 5 u - 2 u
= 3 u
3 u = 72
1 u = 72 ÷ 3 = 24
Mass of pepper in Shop M in the end
= 2 u
= 2 x 24
= 48 kg
Mass of pepper that each shop sold
= 70 - 48
= 22 kg
Amount of pepper that both shops sold
= 2 x 22
= 44 kg
Answer(s): 44 kg