Write three different word problems related to fractions, decimals, and percentage that you encounter on your daily endeavor. Provide solution for each of the problems you've written.

### Word Problem 1: Fractions – Sharing Pizza
**Problem:**
You and three friends ordered a large pizza and agreed to share it equally. However, one friend couldn’t finish their portion and left one-third of it uneaten. If the pizza was divided into 8 slices, how many slices were left uneaten?

**Solution:**
The pizza was shared by 4 people, so each person gets:
\[
\frac{1}{4} \text{ of the pizza}.
\]
Since the pizza has 8 slices, each person gets:
\[
\frac{1}{4} \times 8 = 2 \text{ slices}.
\]
The friend who didn’t finish their portion left one-third of their two slices uneaten, which is:
\[
\frac{1}{3} \times 2 = \frac{2}{3} \text{ slices}.
\]
So, $\frac{2}{3}$ of a slice was left uneaten.

### Word Problem 2: Decimals – Gasoline Consumption
**Problem:**
You are planning a road trip, and your car's fuel consumption is 7.8 liters per 100 kilometers. The trip distance is 350 kilometers. How many liters of gasoline will you need for the entire trip?

**Solution:**
First, find how many times 100 kilometers fits into 350 kilometers:
\[
350 \div 100 = 3.5.
\]
Now, multiply the fuel consumption rate by this factor:
\[
7.8 \times 3.5 = 27.3 \text{ liters}.
\]
You will need 27.3 liters of gasoline for the trip.

### Word Problem 3: Percentage – Sale Discount
**Problem:**
A store is having a sale where all items are 25% off. You want to buy a jacket that originally costs $120. How much will the jacket cost after the discount?

**Solution:**
The discount is 25% of the original price, so calculate:
\[
0.25 \times 120 = 30.
\]
Subtract the discount from the original price:
\[
120 - 30 = 90.
\]
The jacket will cost $90 after the discount.

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Do you want more details or have any questions about these solutions?

Here are 5 additional practice questions based on these ideas:
1. If another person leaves half of their pizza, how many slices are uneaten?
2. How many liters of gasoline would you need for a 500-kilometer trip with the same car?
3. If the store offers an additional 10% discount on sale items, what will the new price of the jacket be?
4. What fraction of a pizza is left if two friends don’t eat their portions?
5. How much gasoline would be required for a 200-kilometer trip at 6.5 liters per 100 kilometers?

**Tip:** Always check for the correct units when dealing with distance, fuel, or percentages to ensure accuracy.

Explore three everyday word problems related to fractions, decimals, and percentages with detailed solutions. Learn how to solve problems like sharing pizza slices, calculating fuel consumption for a road trip, and determining sale discounts. Perfect for students in Grades 5-7.

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