The table shows information about the packs of juice a family has. The family drinks 4 cartons of juice each day. In total, how many days will their packs last?
How to approach this question
1. Calculate the total number of cartons from the first type of pack: 5 packs * 8 cartons/pack.
2. Calculate the total number of cartons from the second type of pack: 16 packs * 3 cartons/pack.
3. Add these two amounts together to find the total number of cartons the family has.
4. Divide the total number of cartons by the number of cartons they drink per day (4).
5. The result is the number of days the juice will last.
Full Answer
22 days
Step 1: Calculate the total cartons from the first type of pack.
There are 5 packs, and each has 8 cartons.
Total cartons = 5 × 8 = 40 cartons.
Step 2: Calculate the total cartons from the second type of pack.
There are 16 packs, and each has 3 cartons.
Total cartons = 16 × 3 = 48 cartons.
Step 3: Calculate the overall total number of cartons.
Total = 40 + 48 = 88 cartons.
Step 4: Calculate how many days the juice will last.
The family drinks 4 cartons per day.
Number of days = Total cartons / Cartons per day
Number of days = 88 / 4 = 22 days.
Common mistakes
✗ Multiplying the wrong numbers together (e.g., 5x16).
✗ Only calculating the cartons for one type of pack.
✗ Making an error in the final division.
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