Shop M had 77 kg of rice flour and Shop N had 131 kg of rice flour. After both shops sold an equal amount of rice flour, Shop M had
25 as much rice flour as Shop N. How much rice flour did both shops sell?
| |
Shop M |
Shop N |
Difference |
| Before |
77 |
131 |
54 |
| Change |
- ? |
- ? |
|
| After |
2 u |
5 u |
3 u |
The difference between the amount of rice flour at first and in the end remains unchanged.
Difference in the mass of rice flour in the end
= 5 u - 2 u
= 3 u
3 u = 54
1 u = 54 ÷ 3 = 18
Mass of rice flour in Shop M in the end
= 2 u
= 2 x 18
= 36 kg
Mass of rice flour that each shop sold
= 77 - 36
= 41 kg
Amount of rice flour that both shops sold
= 2 x 41
= 82 kg
Answer(s): 82 kg
