Question

В одном магазине пакет сахара стоит 20 рублей. В каждом купленном пакете лежит купон. Собрав 4 таких купона(-ов), можно получить один пакет сахара бесплатно. Сколько будет стоить один пакет сахара постоянному покупателю, который уже несколько лет ходит в этот магазин? (округли до целого числа)

Answer 1

За 4 пакета он заплатит 
1) 20 руб * 4 = 80 руб.
И получит пятый пакет.
 Средняя цена -  все деньги делим на все пакеты.
2) 80 руб : 5 шт = 16 руб/шт - средняя цена - ОТВЕТ

Answer 2

Calculation of the Cost of Sugar Packets

To calculate the cost of one sugar packet for a regular customer who has been shopping at the store for several years, we need to consider the following information:

- The price of one sugar packet is 20 rubles. - For every packet purchased, there is a coupon included. - By collecting 4 coupons, the customer can get one free sugar packet.

To determine the cost of one sugar packet for the regular customer, we need to calculate how many packets they need to purchase to collect 4 coupons and get a free packet.

Let's break down the calculation step by step:

1. The customer purchases the first packet for 20 rubles. 2. With the first packet, they receive one coupon. 3. The customer purchases the second packet for 20 rubles. 4. With the second packet, they receive another coupon. 5. The customer purchases the third packet for 20 rubles. 6. With the third packet, they receive a third coupon. 7. The customer purchases the fourth packet for 20 rubles. 8. With the fourth packet, they receive the fourth coupon.

At this point, the customer has collected 4 coupons and can redeem them for a free packet of sugar.

To calculate the total cost, we add up the cost of the four purchased packets:

4 packets * 20 rubles/packet = 80 rubles

Therefore, the regular customer who has been shopping at the store for several years would need to spend 80 rubles to get one free packet of sugar.

Please note that this calculation assumes that the customer only purchases the packets needed to collect the coupons and does not make any additional purchases.