Question

Турист за 2 дня прошёл 45 км.За первый день он прошёл 2/5(дробь) пути.Какое расстояние турист прошёл за второй день?Решите задачу разными способами.

Answer 1

Найдем сколько он прошел за 1 день
(45 * 2) / 5 = 18
45 - 18 = 27 -за второй день

Answer 2

45*2/5=18км-1 день
45-18=27км-2 день

Answer 3

Problem Analysis

The tourist walked 45 km over 2 days. On the first day, he walked 2/5 of the total distance. We need to find the distance the tourist walked on the second day.

Solution 1: Using Fraction Calculation

We can calculate the distance the tourist walked on the second day by subtracting the distance covered on the first day from the total distance.

Step 1: Calculate the distance covered on the first day. - Total distance = 45 km - Distance covered on the first day = 2/5 * 45 km - Distance covered on the first day = 18 km

Step 2: Calculate the distance covered on the second day. - Distance covered on the second day = Total distance - Distance covered on the first day - Distance covered on the second day = 45 km - 18 km - Distance covered on the second day = 27 km

Solution 2: Using Proportions

We can also solve this problem using proportions.

Step 1: Calculate the distance covered on the first day. - Total distance = 45 km - Distance covered on the first day = 2/5 * 45 km - Distance covered on the first day = 18 km

Step 2: Calculate the distance covered on the second day using the proportion. - Let x be the distance covered on the second day. - We can set up the proportion: 2/5 = 18/x - Solving for x, we get: x = (18 * 5) / 2 - Distance covered on the second day = 45 / 2 = 27 km

Conclusion

The tourist covered a distance of 27 km on the second day.