Question

Find the wrong term in the letter-number series given below :

G4T, J10R, M20P, P43N, S90L

• A. G4T
• B. J10R
• C. M20P
• D. P43N
• E. S90L

Answer 1

The correct option is B J10R

The first letter of each term is moved three steps forward and

the last letter is moved two steps backward to obtain the corresponding letters of the next term.

The numbers follow the sequence $\times 2+1,\times 2+2,\times 2+3,\times 2+4.$

So, $10$ is wrong and must be replaced by ($4\times 2+1$) i.e. $9$.