One food outlet bought 176 kg of mutton and pork.
14 of the mutton and
25 of the pork were sold. The amount of pork sold was 8 kg more than the amount of mutton sold.
- How much pork did the food outlet buy?
- How much mutton did the food outlet buy?
|
Mutton |
Pork |
Total |
Before |
4x2 = 8 u |
5 u |
+ 20 |
176 |
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 mutton and pork bought
= 8 u + 5 u + 20
= 13 u + 20
13 u + 20 = 176
13 u = 176 - 20
13 u = 156
1 u = 156 ÷ 13 = 12
Mass of pork bought
= 5 u + 20
= 5 x 12 + 20
= 60 + 20
= 80 kg
(b)
Mass of mutton bought
= 8 u
= 8 x 12
= 96 kg
Answer(s): (a) 80 kg; (b) 96 kg