Shop N had 69 kg of bread flour and Shop P had 135 kg of bread flour. After both shops sold an equal amount of bread flour, Shop N had
25 as much bread flour as Shop P. How much bread flour did both shops sell?
|
Shop N |
Shop P |
Difference |
Before |
69 |
135 |
66 |
Change |
- ? |
- ? |
|
After |
2 u |
5 u |
3 u |
The difference between the amount of bread flour at first and in the end remains unchanged.
Difference in the mass of bread flour in the end
= 5 u - 2 u
= 3 u
3 u = 66
1 u = 66 ÷ 3 = 22
Mass of bread flour in Shop N in the end
= 2 u
= 2 x 22
= 44 kg
Mass of bread flour that each shop sold
= 69 - 44
= 25 kg
Amount of bread flour that both shops sold
= 2 x 25
= 50 kg
Answer(s): 50 kg