One eating house bought 348 kg of venison and beef.
14 of the venison and
58 of the beef were sold. The amount of beef sold was 25 kg more than the amount of venison sold.
- How much beef did the eating house buy?
- How much venison did the eating house buy?
|
Venison |
Beef |
Total |
Before |
4x5 = 20 u |
8 u |
+ 40 |
348 |
Change |
- 1x5 = - 5 u |
- 5 u |
- 25 |
|
After |
3x5 = 15 u |
3 u |
+ 15 |
|
(a)
25 ÷ 5 x 8 = 40
25 ÷ 5 x 3 = 15
Total mass of venison and beef bought
= 20 u + 8 u + 40
= 28 u + 40
28 u + 40 = 348
28 u = 348 - 40
28 u = 308
1 u = 308 ÷ 28 = 11
Mass of beef bought
= 8 u + 40
= 8 x 11 + 40
= 88 + 40
= 128 kg
(b)
Mass of venison bought
= 20 u
= 20 x 11
= 220 kg
Answer(s): (a) 128 kg; (b) 220 kg