Question

Напишите решение задачи: Вася может прополоть 4 грядки за 7 часов,Петя 3 грядки за 8 часов,Лена 5 за 4 часа,Коля 6 за 5 часов.Кто работает быстрее ? напишите решение кто быстрее только решение

Answer 1

Вася за 1час полет 0,8 грядки или 4/5
петя 3/7 или 0,4
лена 14/21 или 2/3 или 0,7
коля 2/6 или 1/3 или 0,3
следовательно  медленнее всех работает коля

Answer 2

Problem Analysis

To determine who works faster among Vasya, Petya, Lena, and Kolya, we need to compare the rates at which they complete their tasks. The rate at which each person completes their task can be calculated by dividing the number of beds they can weed by the time it takes them to complete the task.

Let's calculate the rates for each person:

- Vasya: 4 beds in 7 hours, so the rate is 4/7 beds per hour. - Petya: 3 beds in 8 hours, so the rate is 3/8 beds per hour. - Lena: 5 beds in 4 hours, so the rate is 5/4 beds per hour. - Kolya: 6 beds in 5 hours, so the rate is 6/5 beds per hour.

We can compare these rates to determine who works faster.

Solution

To determine who works faster, we compare the rates at which each person completes their tasks. The person with the highest rate completes their tasks faster.

Let's calculate the rates for each person:

- Vasya: 4 beds in 7 hours, so the rate is 4/7 beds per hour. - Petya: 3 beds in 8 hours, so the rate is 3/8 beds per hour. - Lena: 5 beds in 4 hours, so the rate is 5/4 beds per hour. - Kolya: 6 beds in 5 hours, so the rate is 6/5 beds per hour.

Comparing the rates, we can see that Kolya has the highest rate of 6/5 beds per hour, which means he works faster than the others.

Therefore, Kolya works faster than Vasya, Petya, and Lena.