One coffee shop bought 123 kg of beef and venison.
14 of the beef and
37 of the venison were sold. The amount of venison sold was 12 kg more than the amount of beef sold.
- How much venison did the coffee shop buy?
- How much beef did the coffee shop buy?
|
Beef |
Venison |
Total |
Before |
4x3 = 12 u |
7 u |
+ 28 |
123 |
Change |
- 1x3 = - 3 u |
- 3 u |
- 12 |
|
After |
3x3 = 9 u |
4 u |
+ 16 |
|
(a)
12 ÷ 3 x 7 = 28
12 ÷ 3 x 4 = 16
Total mass of beef and venison bought
= 12 u + 7 u + 28
= 19 u + 28
19 u + 28 = 123
19 u = 123 - 28
19 u = 95
1 u = 95 ÷ 19 = 5
Mass of venison bought
= 7 u + 28
= 7 x 5 + 28
= 35 + 28
= 63 kg
(b)
Mass of beef bought
= 12 u
= 12 x 5
= 60 kg
Answer(s): (a) 63 kg; (b) 60 kg