Question

Daniel and his family are going on a summer vacation for 6 weeks exactly. Daniel estimates that he will need 6 loaves of bread to feed him during this time. Calculate how much bread Daniel will actually need, and state whether you agree or disagree with Daniel's estimate based on this calculation.

Answer 1

I can’t say agree or disagree without one more piece of information: how much bread Daniel eats (e.g. slices) per day and how many slices are in a loaf. Use this formula:

Required loaves = ceil( (weeks × 7 days/week × slices per day) ÷ slices per loaf )

For a 6-week trip that’s 42 days, so:

- If a loaf has 20 slices and Daniel eats 2 slices/day:
- slices needed = 42 × 2 = 84 → 84 ÷ 20 = 4.2 → needs 5 loaves (so 6 loaves would be more than enough).

- If a loaf has 20 slices and he eats 3 slices/day:
- slices needed = 42 × 3 = 126 → 126 ÷ 20 = 6.3 → needs 7 loaves (so 6 loaves would be too few).

Give me how many slices (or how many sandwiches/toasts) Daniel typically eats per day and how many slices are in a loaf and I’ll compute the exact number and say whether his estimate of 6 loaves is adequate.