One eating house bought 36 kg of mutton and chicken.
12 of the mutton and
27 of the chicken were sold. The amount of chicken sold was 4 kg more than the amount of mutton sold.
- How much chicken did the eating house buy?
- How much mutton did the eating house buy?
|
Mutton |
Chicken |
Total |
Before |
2x2 = 4 u |
7 u |
+ 14 |
36 |
Change |
- 1x2 = - 2 u |
- 2 u |
- 4 |
|
After |
1x2 = 2 u |
5 u |
+ 10 |
|
(a)
4 ÷ 2 x 7 = 14
4 ÷ 2 x 5 = 10
Total mass of mutton and chicken bought
= 4 u + 7 u + 14
= 11 u + 14
11 u + 14 = 36
11 u = 36 - 14
11 u = 22
1 u = 22 ÷ 11 = 2
Mass of chicken bought
= 7 u + 14
= 7 x 2 + 14
= 14 + 14
= 28 kg
(b)
Mass of mutton bought
= 4 u
= 4 x 2
= 8 kg
Answer(s): (a) 28 kg; (b) 8 kg