One canteen bought 98 kg of pork and chicken.
14 of the pork and
25 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 canteen buy?
- How much pork did the canteen buy?
|
Pork |
Chicken |
Total |
Before |
4x2 = 8 u |
5 u |
+ 20 |
98 |
Change |
- 1x2 = - 2 u |
- 2 u |
- 8 |
|
After |
3x2 = 6 u |
3 u |
+ 12 |
|
(a)
8 ÷ 2 x 5 = 20
8 ÷ 2 x 3 = 12
Total mass of pork and chicken bought
= 8 u + 5 u + 20
= 13 u + 20
13 u + 20 = 98
13 u = 98 - 20
13 u = 78
1 u = 78 ÷ 13 = 6
Mass of chicken bought
= 5 u + 20
= 5 x 6 + 20
= 30 + 20
= 50 kg
(b)
Mass of pork bought
= 8 u
= 8 x 6
= 48 kg
Answer(s): (a) 50 kg; (b) 48 kg