Which of the four options will replace the question mark (?) in the following series?
UE 88, VG 84, WI 80, XK76, ?

Option
a) ZM72
b) ZN71
c) YN73
d) YM72

Solution

UE 88, VG 84, WI 80, XK76,
21,-5, -88 , 22-7, 84, 23-9-80, 24-11-76
First letter + 1
Second Letter + 2
Third Number – 4
Next Number
25-13-72
Y, M, 72

Correct Answer : d) YM72