Ava is in charge of bringing bottled water to a party that has 42 guests.

Bottled water is sold in packs of 18 and each pack costs $16.92.

Part A: enter the total number of packs of water Ava will need to bring to the party if each guest is to have 1 bottle of wate

Part B: enter the total cost, in dollars, Ava will spend on bottled water for the party.


Let's solve the problem step by step:

### Part A: Number of Packs Needed
1. **Number of Guests**: 42
2. **Bottles per Pack**: 18

To find the total number of packs Ava needs, we divide the total number of guests by the number of bottles per pack:

\[
\text{Number of packs} = \left\lceil \frac{42}{18} \right\rceil
\]

Calculating:

\[
\frac{42}{18} \approx 2.33
\]

Since Ava cannot purchase a fraction of a pack, she needs to round up to the nearest whole number:

\[
\text{Number of packs} = 3
\]

So, Ava needs **3 packs** of water.

### Part B: Total Cost
1. **Cost per Pack**: $16.92
2. **Number of Packs Needed**: 3

The total cost is calculated by multiplying the number of packs by the cost per pack:

\[
\text{Total cost} = 3 \times 16.92 = 50.76
\]

So, Ava will spend **$50.76** on bottled water for the party.

### Summary:
- **Part A**: Ava will need to bring **3 packs** of water.
- **Part B**: Ava will spend **$50.76**.

Would you like more details, or do you have any other questions?

Here are five related questions:
1. What if each guest needs 2 bottles of water?
2. How much would Ava save if the water pack cost was reduced by 10%?
3. What would be the total cost if there were 60 guests?
4. How many packs would Ava need if each pack contained 24 bottles instead?
5. If another store sells packs of 18 bottles for $15.00, how much would Ava save by buying from that store?

**Tip:** Always remember to round up when dealing with quantities that must be whole numbers, like packs of bottles.

Learn how to calculate the number of packs and total cost of bottled water for a party with 42 guests. This math problem involves arithmetic operations such as division and rounding up. Suitable for students in Grades 3-5.

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