Question

Find the missing number.

$17,14,15,12,13,10,.....$

• A. $7$
• B. $11$
• C. $14$
• D. $9$

Answer 1

The correct option is B $11$

Here $2$ series are following:

First is $17,15,13,....$

Second is $14,12,10,...$

In the first series, every next term is obtained by decreasing previous term by $2$

So, the missing number is $13-2=11$

Hence, the answer is $11$.