Question

Find the missing number 9 10 ? 15 19

Answer 1

Answer:

12

Step-by-step explanation:

The series is +1,+2,+3,+4

So, 9+1=10

10+2=?=12

12+3=15

15+4=19...

Answer 2

Given:

9, 10, ? 15, 19

To find:

The missing number

Solution:

The missing number is 12.

We can find the term by following the given steps-

We know that the numbers given above are formed by adding the first four natural numbers to the given digits.

Let the missing number be X.

The numbers given are as follows:

9, 10, X, 15, 19

The given terms are obtained by adding 1, 2, 3, 4, respectively, to the previous digit to obtain the next number.

The first term=9

The second term=9+1=10

The third term, X=10+2=12

The fourth term=12+3=15

The fifth term=15+4=19

The third or missing term=X=12

Therefore, the missing number is 12.