Question

Незнайка и Знайка вышли из своих домиков навстречу друг другу и встретились через 6 минут. Через сколько минут после встречи Незнайка подойдёт к дому Знайки, если скорость Знайки в два раза больше скорости Незнайки?

Answer 1

На встречу они шли - 6 часов
Знайка шёл на встречу - 2 минуты
Незнайка шёл на встречу - 4 минуты
Через 10 минуты((2х2)+6) Незнайка подойдёт к дому Знайки
=)

Answer 2

Calculating the Time for Neznayka to Reach Znayka's House

Neznayka and Znayka met after 6 minutes. We need to calculate how long it will take Neznayka to reach Znayka's house if Znayka's speed is twice that of Neznayka's.

Let's denote: - Neznayka's speed as N - Znayka's speed as 2N

The time it takes for Neznayka to reach Znayka's house can be calculated using the formula: \[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} \]

Since the distance is the same for both Neznayka and Znayka, we can use the formula to calculate the time.

Calculation

Neznayka and Znayka met after 6 minutes. Let's denote the time it takes for Neznayka to reach Znayka's house as T.

According to the given information, the time it takes for Neznayka to reach Znayka's house can be calculated as: \[ 6 + T = \frac{D}{N} \] \[ T = \frac{D}{N} - 6 \]

Since Znayka's speed is twice that of Neznayka's, the time it takes for Neznayka to reach Znayka's house can also be calculated as: \[ T = \frac{D}{2N} \]

Equating the two expressions for T: \[ \frac{D}{N} - 6 = \frac{D}{2N} \] \[ 2D - 12N = D \] \[ D = 12N \]

So, it will take Neznayka 12 minutes to reach Znayka's house.

Answer: Neznayka will reach Znayka's house after 12 minutes.