Question

Купили 3 коробки конфет первая коробка стоит 90 вторая в 2 раза дороже чем первая а третия столько сколько стоят первая и вторая коробки вместе . сколько стоит вся покупка

Answer 1

1)90*2=180(р)-стоит вторая коробка.

2)90+180= 270(р)-стоит третья.

3) 90+180+270= 540(р)-стоит вся покупка

Answer 2

1)90 × 2 = 180 (руб) 2 коробка
2)90 + 180 = 270 (руб) 3 коробка
3)90 + 180 + 270 = 540 (руб) вся покупка
Ответ:540 рублей

Answer 3

Problem Analysis

We are given that three boxes of candy were purchased. The first box costs 90, the second box is twice as expensive as the first, and the third box costs the same as the sum of the first and second boxes. We need to determine the total cost of the purchase.

Solution

Let's break down the problem step by step:

1. The first box costs 90. 2. The second box is twice as expensive as the first box. Therefore, the second box costs 90 * 2 = 180. 3. The third box costs the same as the sum of the first and second boxes. Therefore, the third box costs 90 + 180 = 270.

To find the total cost of the purchase, we add the costs of all three boxes: 90 + 180 + 270 = 540.

Therefore, the total cost of the purchase is 540.

Answer

The total cost of the purchase is 540.