Question

Дана последовательность: 2; 9; 16; 23; 30; … На каком месте стоит число 86? Ответ:

Answer 1

Каждое следующее число увеличивается на 7.

2; 9; 16; 23; 30; 37; 44; 51; 58; 65; 72; 79; 86

Число 86 стоит на 13 месте.

Ответ: на 13 месте.

Answer 2

Finding the Position of Number 86 in the Sequence

To find the position of the number 86 in the given sequence, let's analyze the pattern of the sequence. The sequence starts with 2 and increases by 7 each time. Therefore, we can generate the sequence as follows:

2, 9, 16, 23, 30, ...

To find the position of 86, we need to determine how many times the sequence increases by 7 until it reaches 86. We can do this by subtracting 2 from 86 and then dividing the result by 7:

(86 - 2) / 7 = 84 / 7 = 12

Therefore, the number 86 is the 12th term in the sequence.

Answer: The number 86 is in the 12th position in the given sequence.