Question

Решите пж, срочно!!! Велосипедист проехал за три дня 42 км, в первый день он проехал всего 1/3 пути, во второй 25 % того, что проехал в первый день. Сколько км велосипедист проехал 3 день.

Answer 1

Problem Analysis

The problem states that a cyclist traveled a total distance of 42 km over three days. On the first day, the cyclist traveled 1/3 of the total distance, and on the second day, the cyclist traveled 25% of what they traveled on the first day. We need to determine the distance traveled on the third day.

Solution

To solve this problem, we can break it down into three steps: 1. Calculate the distance traveled on the first day. 2. Calculate the distance traveled on the second day. 3. Calculate the distance traveled on the third day.

Let's solve each step one by one.

Step 1: Distance Traveled on the First Day

The problem states that on the first day, the cyclist traveled 1/3 of the total distance. To find the distance traveled on the first day, we can multiply the total distance by 1/3.

Let's calculate it: ``` Distance on the first day = (1/3) * 42 km ```

Using the given information, we can calculate the distance traveled on the first day.

Step 2: Distance Traveled on the Second Day

The problem states that on the second day, the cyclist traveled 25% of what they traveled on the first day. To find the distance traveled on the second day, we can multiply the distance traveled on the first day by 25%.

Let's calculate it: ``` Distance on the second day = (25/100) * (Distance on the first day) ```

Using the calculated distance on the first day, we can calculate the distance traveled on the second day.

Step 3: Distance Traveled on the Third Day

To find the distance traveled on the third day, we need to subtract the distances traveled on the first and second days from the total distance.

Let's calculate it: ``` Distance on the third day = Total distance - (Distance on the first day + Distance on the second day) ```

Using the calculated distances on the first and second days, we can calculate the distance traveled on the third day.

Calculation

Let's calculate the distances using the given information:

1. Distance on the first day: ``` Distance on the first day = (1/3) * 42 km = 14 km ```

2. Distance on the second day: ``` Distance on the second day = (25/100) * 14 km = 3.5 km ```

3. Distance on the third day: ``` Distance on the third day = 42 km - (14 km + 3.5 km) = 24.5 km ```

Answer

The cyclist traveled 24.5 km on the third day.

Please let me know if you need any further assistance!