Shop X had 71 kg of bread flour and Shop Y had 143 kg of bread flour. After both shops sold an equal amount of bread flour, Shop X had
25 as much bread flour as Shop Y. How much bread flour did both shops sell?
| |
Shop X |
Shop Y |
Difference |
| Before |
71 |
143 |
72 |
| 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 = 72
1 u = 72 ÷ 3 = 24
Mass of bread flour in Shop X in the end
= 2 u
= 2 x 24
= 48 kg
Mass of bread flour that each shop sold
= 71 - 48
= 23 kg
Amount of bread flour that both shops sold
= 2 x 23
= 46 kg
Answer(s): 46 kg
