One canteen bought 153 kg of chicken and pork.
14 of the chicken and
25 of the pork were sold. The amount of pork sold was 4 kg more than the amount of chicken sold.
- How much pork did the canteen buy?
- How much chicken did the canteen buy?
|
Chicken |
Pork |
Total |
Before |
4x2 = 8 u |
5 u |
+ 10 |
153 |
Change |
- 1x2 = - 2 u |
- 2 u |
- 4 |
|
After |
3x2 = 6 u |
3 u |
+ 6 |
|
(a)
4 ÷ 2 x 5 = 10
4 ÷ 2 x 3 = 6
Total mass of chicken and pork bought
= 8 u + 5 u + 10
= 13 u + 10
13 u + 10 = 153
13 u = 153 - 10
13 u = 143
1 u = 143 ÷ 13 = 11
Mass of pork bought
= 5 u + 10
= 5 x 11 + 10
= 55 + 10
= 65 kg
(b)
Mass of chicken bought
= 8 u
= 8 x 11
= 88 kg
Answer(s): (a) 65 kg; (b) 88 kg