One canteen bought 269 kg of pork and chicken.
13 of the pork and
58 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 canteen buy?
- How much pork did the canteen buy?
| |
Pork |
Chicken |
Total |
Before |
3x5 =
15 u |
8 u |
+ 16 |
269 |
Change |
- 1x5 =
- 5 u |
- 5 u |
- 10 |
|
After |
2x5 =
10 u |
3 u |
+ 6 |
|
(a)
10 ÷ 5 x 8 = 16
10 ÷ 5 x 3 = 6
Total mass of pork and chicken bought
= 15 u + 8 u + 16
= 23 u + 16
23 u + 16 = 269
23 u = 269 - 16
23 u = 253
1 u = 253 ÷ 23 = 11
Mass of chicken bought
= 8 u + 16
= 8 x 11 + 16
= 88 + 16
= 104 kg
(b)
Mass of pork bought
= 15 u
= 15 x 11
= 165 kg
Answer(s): (a) 104 kg; (b) 165 kg
