Question

Расстояние между норками А и Б молодой ежик может пройти за 6 минут, а старый еж за 9 минут. в 10.15 из А в Б отправился молодой ежик , а в10.16. ему на встречу из Б в А вышел старый еж. Во сколько ежи встретятся?

Answer 1

Решение
(15+6)-(16+9)=4
10:16+4=10:20

Answer 2

Calculation of Meeting Time

To calculate the meeting time between the young hedgehog (A) and the old hedgehog (B), we need to consider their respective speeds.

Given that the young hedgehog can cover the distance between A and B in 6 minutes, and the old hedgehog can cover the same distance in 9 minutes, we can determine their speeds as follows:

- The speed of the young hedgehog is 1/6 of the distance per minute. - The speed of the old hedgehog is 1/9 of the distance per minute.

Since the young hedgehog started from point A at 10:15 and the old hedgehog started from point B at 10:16, we need to calculate the time it takes for them to meet.

Let's assume that they meet after t minutes. During this time, the young hedgehog would have covered a distance of (1/6) * t, and the old hedgehog would have covered a distance of (1/9) * t.

Since they are meeting in the middle, the sum of their distances covered should be equal to the total distance between A and B.

Therefore, we can set up the following equation:

(1/6) * t + (1/9) * t = 1

Simplifying the equation, we get:

(3/18) * t + (2/18) * t = 1

(5/18) * t = 1

Solving for t, we find:

t = 18/5

Converting this to minutes, we get:

t = 3.6 minutes

Therefore, the young hedgehog and the old hedgehog will meet approximately 3.6 minutes after they start their journeys.

Please note that the given sources do not provide any relevant information for this specific calculation.