One coffee shop bought 267 kg of pork and beef.
14 of the pork and
45 of the beef were sold. The amount of beef sold was 12 kg more than the amount of pork sold.
- How much beef did the coffee shop buy?
- How much pork did the coffee shop buy?
|
Pork |
Beef |
Total |
Before |
4x4 = 16 u |
5 u |
+ 15 |
267 |
Change |
- 1x4 = - 4 u |
- 4 u |
- 12 |
|
After |
3x4 = 12 u |
1 u |
+ 3 |
|
(a)
12 ÷ 4 x 5 = 15
12 ÷ 4 x 1 = 3
Total mass of pork and beef bought
= 16 u + 5 u + 15
= 21 u + 15
21 u + 15 = 267
21 u = 267 - 15
21 u = 252
1 u = 252 ÷ 21 = 12
Mass of beef bought
= 5 u + 15
= 5 x 12 + 15
= 60 + 15
= 75 kg
(b)
Mass of pork bought
= 16 u
= 16 x 12
= 192 kg
Answer(s): (a) 75 kg; (b) 192 kg