Calculate 15% of 60 Liters: Second Day Fuel Consumption Problem

Question

In a car's fuel tank there are 60 liters of fuel. On the first day 10% of the fuel is used and on the second day 15% of the fuel is used.

How many liters of fuel are used on the second day?

Step-by-Step Solution

To solve this problem, follow these steps:

  • Identify original fuel quantity and calculate daily usage based on percentage.

  • Determine the remaining fuel after the first day's usage.

  • Calculate the liters used on the second day based on remaining fuel.

Let's go through the solution step-by-step:
Step 1: Calculate 10% of 60 liters (fuel used on the first day).
Fuel used on first day=10100×60=6 liters\text{Fuel used on first day} = \frac{10}{100} \times 60 = 6 \text{ liters}

Step 2: Calculate remaining fuel after the first day:
Remaining fuel=606=54 liters\text{Remaining fuel} = 60 - 6 = 54 \text{ liters}

Step 3: Calculate 15% of the remaining fuel for usage on the second day:
Fuel used on second day=15100×54=8.1 liters\text{Fuel used on second day} = \frac{15}{100} \times 54 = 8.1 \text{ liters}

Therefore, the amount of fuel used on the second day is 8.1 liters.

Answer

8.1