Question

15, 23, 31, 39, ?, 55, 63​

Answer 1

Answer:

47

because 7 is difference in all number

Answer 2

Answer: 15, 23, 31, 39, 47, 55, 63.

Step-by-step explanation:

Now here,

From the given question

The above question numberphile or number series contains Arithmetic Progression (AP).

An arithmetic progression or arithmetic sequence is a sequence in which the difference between any two or more than two successive terms remains unchanged or constant. The difference between these successive terms is known as the common difference and is indicated by d.

Therefore, from the given question,

Difference between 15 - 23 = - 8

Difference between 23 - 31 = - 8

Difference between 31 - 39 = - 8

Difference between 55 - 63 = - 8

Therefore, from the above difference, the unknown number will be,

Difference between 39 - 47 = - 8

Difference between 47 - 55 = - 8

From both differences, we get the same number.

Therefore, 47 is the correct number of numberphile.

#SPJ2

Click the below link to know more:

https://brainly.in/question/11357684

https://brainly.in/question/1345064