Question

In the following questions one number is wrong in the series Find out the wrong number in each case
2, 6, 15, 40, 89, 200

• A. 2
• B. 6
• C. 200
• D. 89

Answer 1

Answer: (C)

200

The differences are the squares of prime numbers i.e. $2^2,3^2,5^2,7^2,{11}^2$ ect i.e. 4, 9, 25, 49, 121 etc.
Ans (C)