Shop W had 79 kg of pepper and Shop X had 121 kg of pepper. After both shops sold an equal amount of pepper, Shop W had
35 as much pepper as Shop X. How much pepper did both shops sell?
| |
Shop W |
Shop X |
Difference |
| Before |
79 |
121 |
42 |
| Change |
- ? |
- ? |
|
| After |
3 u |
5 u |
2 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 - 3 u
= 2 u
2 u = 42
1 u = 42 ÷ 2 = 21
Mass of pepper in Shop W in the end
= 3 u
= 3 x 21
= 63 kg
Mass of pepper that each shop sold
= 79 - 63
= 16 kg
Amount of pepper that both shops sold
= 2 x 16
= 32 kg
Answer(s): 32 kg
