One canteen bought 195 kg of mutton and chicken.
14 of the mutton and
35 of the chicken were sold. The amount of chicken sold was 15 kg more than the amount of mutton sold.
- How much chicken did the canteen buy?
- How much mutton did the canteen buy?
|
Mutton |
Chicken |
Total |
Before |
4x3 = 12 u |
5 u |
+ 25 |
195 |
Change |
- 1x3 = - 3 u |
- 3 u |
- 15 |
|
After |
3x3 = 9 u |
2 u |
+ 10 |
|
(a)
15 ÷ 3 x 5 = 25
15 ÷ 3 x 2 = 10
Total mass of mutton and chicken bought
= 12 u + 5 u + 25
= 17 u + 25
17 u + 25 = 195
17 u = 195 - 25
17 u = 170
1 u = 170 ÷ 17 = 10
Mass of chicken bought
= 5 u + 25
= 5 x 10 + 25
= 50 + 25
= 75 kg
(b)
Mass of mutton bought
= 12 u
= 12 x 10
= 120 kg
Answer(s): (a) 75 kg; (b) 120 kg