Question

Таня, Даша и Ира собирали марки. У Тани марок было в 4 раза больше, чем у Даши, а у Иры в 2 раза больше, чем у Тани. Сколько марок было у каждой девочки, если всего у них было 18 штук.

Answer 1

У Тани было 8 марок у Даши 2 у Иры 8

Answer 2

Solution:

Let's solve this problem step by step.

1. Let's assume the number of stamps Dasha has is x. 2. Then, Tanya has 4x stamps, and Ira has 2 * 4x = 8x stamps. 3. The total number of stamps they have is 18, so we can form the equation: x + 4x + 8x = 18.

Now, let's solve for x to find the number of stamps each girl has.

Calculation:

1. x + 4x + 8x = 18 2. 13x = 18 3. x = 18 / 13 4. x = 1.38 (approx)

Now, we can find the number of stamps each girl has: - Dasha: x = 1.38 (approx) - Tanya: 4x = 4 * 1.38 = 5.52 (approx) - Ira: 8x = 8 * 1.38 = 11.04 (approx)

So, the number of stamps each girl has is approximately: - Dasha: 1.38 - Tanya: 5.52 - Ira: 11.04