Question

За 3 часа работы кассир обслуживает x клиентов. Найдите x, если кассир, работая с той же скоростью, за 5 часов работы обслуживает 250 клиентов.

Answer 1

250 / 5 = 50 клиентов в час
50*3 = 150 клиентов за 3 часа

Answer 2

Problem Analysis

We are given that a cashier can serve x number of customers in 3 hours and can serve 250 customers in 5 hours. We need to find the value of x.

Solution

Let's assume that the cashier's rate of serving customers is constant. In other words, the number of customers served is directly proportional to the number of hours worked.

We can set up a proportion to solve for x:

3 hours / x customers = 5 hours / 250 customers

To solve this proportion, we can cross-multiply:

3 * 250 = 5 * x

750 = 5x

Now, we can solve for x by dividing both sides of the equation by 5:

x = 750 / 5

x = 150

Therefore, the cashier can serve 150 customers in 3 hours.

Answer

If the cashier, working at the same speed, can serve 250 customers in 5 hours, then the cashier can serve 150 customers in 3 hours.