Correct solutions were received from Mary Fortune (Birchwood Community High School) and Chor Kiang Tan. Well done.
First, find the total ounces of bread.
600 x 35 x 24 ounces = 504000 ounces
Now, find the new number of men-shares needed.
4800 x 45 = 120000
Divide 504000 ounces by 120000 to get 2 1/3 ounces a day.
Hence, each man must only eat 2 1/3 ounces of bread a day.
£14 10s = 290s
£5 7/16 = 108.75 shillings
| Weight (cwt) | Distance (miles) | Amount (shillings) | |
|---|---|---|---|
| 60 | can be transported for | 20 | for 290 |
| 1 | can be transported for | 20 | for 290/60 = 29/6 |
| 1 | can be transported for | 30 | (29/6)x(30/20)s = 7.25 |
| (1/7.25) | can be transported for | 30 | 1 |
| 108.75 x (1/7.25) | can be transported for | 30 | 108.75 |
Since 108.75 /7.25 = 15
Hence, 15 cwt can be carried for 30 miles at a cost of £5 7/16