One food outlet bought 366 kg of pork and chicken.
15 of the pork and
57 of the chicken were sold. The amount of chicken sold was 10 kg more than the amount of pork sold.
- How much chicken did the food outlet buy?
- How much pork did the food outlet buy?
|
Pork |
Chicken |
Total |
Before |
5x5 = 25 u |
7 u |
+ 14 |
366 |
Change |
- 1x5 = - 5 u |
- 5 u |
- 10 |
|
After |
4x5 = 20 u |
2 u |
+ 4 |
|
(a)
10 ÷ 5 x 7 = 14
10 ÷ 5 x 2 = 4
Total mass of pork and chicken bought
= 25 u + 7 u + 14
= 32 u + 14
32 u + 14 = 366
32 u = 366 - 14
32 u = 352
1 u = 352 ÷ 32 = 11
Mass of chicken bought
= 7 u + 14
= 7 x 11 + 14
= 77 + 14
= 91 kg
(b)
Mass of pork bought
= 25 u
= 25 x 11
= 275 kg
Answer(s): (a) 91 kg; (b) 275 kg