Shop P had 79 kg of flour and Shop Q had 135 kg of flour. After both shops sold an equal amount of flour, Shop P had
311 as much flour as Shop Q. How much flour did both shops sell?
| |
Shop P |
Shop Q |
Difference |
| Before |
79 |
135 |
56 |
| Change |
- ? |
- ? |
|
| After |
3 u |
11 u |
8 u |
The difference between the amount of flour at first and in the end remains unchanged.
Difference in the mass of flour in the end
= 11 u - 3 u
= 8 u
8 u = 56
1 u = 56 ÷ 8 = 7
Mass of flour in Shop P in the end
= 3 u
= 3 x 7
= 21 kg
Mass of flour that each shop sold
= 79 - 21
= 58 kg
Amount of flour that both shops sold
= 2 x 58
= 116 kg
Answer(s): 116 kg
