One eating house bought 88 kg of pork and chicken.
12 of the pork and
45 of the chicken were sold. The amount of chicken sold was 8 kg more than the amount of pork sold.
- How much chicken did the eating house buy?
- How much pork did the eating house buy?
|
Pork |
Chicken |
Total |
Before |
2x4 = 8 u |
5 u |
+ 10 |
88 |
Change |
- 1x4 = - 4 u |
- 4 u |
- 8 |
|
After |
1x4 = 4 u |
1 u |
+ 2 |
|
(a)
8 ÷ 4 x 5 = 10
8 ÷ 4 x 1 = 2
Total mass of pork and chicken bought
= 8 u + 5 u + 10
= 13 u + 10
13 u + 10 = 88
13 u = 88 - 10
13 u = 78
1 u = 78 ÷ 13 = 6
Mass of chicken bought
= 5 u + 10
= 5 x 6 + 10
= 30 + 10
= 40 kg
(b)
Mass of pork bought
= 8 u
= 8 x 6
= 48 kg
Answer(s): (a) 40 kg; (b) 48 kg