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Select the term from among the given options that can replace the question mark (?) in the following alpha-numeric series to make it logically complet
Question

Select the term from among the given options that can replace the question mark (?) in the following alpha-numeric series to make it logically complete.
3Z6, 8Y12, 15X18, 24W24, 35V30, ?

A.

48V36

B.

36V48

C.

48U36

D.

36U48

Correct option is C

Given: 3Z6, 8Y12, 15X18, 24W24, 35V30, ?
​Given series:
3Z6, 8Y12, 15X18, 24W24, 35V30, ?
Logic: first number is increasing by 5, 7, 9, ……….and its double difference is 2.
Letter is decreasing by 1.
Second number is increasing by 6.
3+5=8, 8+7=15, 15+9=24, 24+11=35, 35+13=48
Z-1=Y, Y-1=X, X-1=W, W-1=V, V-1=U
6+6=12, 12+6=18, 18+6=24, 24+6=30, 30+6=36
So, 48U36 is the missing term.
Thus, correct option is (c). 

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