Question

Елена выбрала в магазине одну пачку сока за 60 рублей и 4 одинаковых шоколадки на кассе лена отдала за всю покупку 200 рублей получил сдачу 40 рублей сколько стоила одна шоколадка скажите решение

Answer 1

200-40=160(Р)-стоит покупка
160-60=100(Р)-стоят 4 шоколадки
100:4=25(Р)

Answer 2

Problem Analysis

Elena purchased one pack of juice for 60 rubles and 4 identical chocolate bars. The total cost of the purchase was 200 rubles, and she received 40 rubles in change. We need to determine the cost of one chocolate bar.

Solution

Let's assume the cost of one chocolate bar is x rubles.

The total cost of the juice and chocolate bars is given by the equation: 1 * 60 + 4 * x = 200

Simplifying the equation, we have: 60 + 4x = 200

To find the value of x, we need to solve this equation.

Solving the Equation

To solve the equation, we'll isolate x on one side of the equation.

Subtracting 60 from both sides of the equation, we have: 4x = 200 - 60 4x = 140

Dividing both sides of the equation by 4, we have: x = 140 / 4 x = 35

Answer

Therefore, the cost of one chocolate bar is 35 rubles.

Verification

Let's verify our answer by substituting the value of x into the original equation: 1 * 60 + 4 * 35 = 200

Simplifying the equation, we have: 60 + 140 = 200 200 = 200

The equation is true, which confirms that our answer is correct.