One canteen bought 120 kg of venison and pork.
15 of the venison and
27 of the pork were sold. The amount of pork sold was 10 kg more than the amount of venison sold.
- How much pork did the canteen buy?
- How much venison did the canteen buy?
|
Venison |
Pork |
Total |
Before |
5x2 = 10 u |
7 u |
+ 35 |
120 |
Change |
- 1x2 = - 2 u |
- 2 u |
- 10 |
|
After |
4x2 = 8 u |
5 u |
+ 25 |
|
(a)
10 ÷ 2 x 7 = 35
10 ÷ 2 x 5 = 25
Total mass of venison and pork bought
= 10 u + 7 u + 35
= 17 u + 35
17 u + 35 = 120
17 u = 120 - 35
17 u = 85
1 u = 85 ÷ 17 = 5
Mass of pork bought
= 7 u + 35
= 7 x 5 + 35
= 35 + 35
= 70 kg
(b)
Mass of venison bought
= 10 u
= 10 x 5
= 50 kg
Answer(s): (a) 70 kg; (b) 50 kg