Select the combination of letters that when sequentially placed in the blanks will create a repetitive pattern

c _ b b a _ c a b _ a c _ a b _ a c

Question

Question

This question was previously asked in

RRB NTPC CBT-I Official Paper (Held On: 28 Dec 2020 Shift 1)

Answer 1

Given :- c _ b b a _ c a b _ a c _ a b _ a c

By checking options and substituting accordingly.

1) a; c; b; c; b → c a b b a c - c a b b a c - c a b b a c

2) a; b; c; b; c → c a b b a b - c a b c a c - b a b c a c

3) b; a; b; c; c → c b b b a a - c a b b a c - c a b c a c

4) b; c; a; c; b → c b b b a c - c a b a a c - c a b b a c

Hence, "a; c; b; c; b" is the correct answer.