Which letter will replace the question mark (?) in the following series? S31T, U37V, W41X, ? |
X43Y Y47Z Y43Z A43B |
Y43Z |
According to the above alphabet position: S31T ⇒ (19), 31, (20) U37V ⇒ (21), 37, (22) W41X ⇒ (23), 41, (24) ? ⇒ (25), 43, (26) = Y43Z (consecutive alphabet series at 1st and last alphabet position and there is prime number series in the middle) |