Challenge Prelims V1.0 – Day 22 – CSAT Paper

1. Consider the following sequence that follows a certain pattern.

A B C _ _ A B C _ D A B B C D _ A B C D

Which one of the following completes the sequence? (UPSC 2023)

2. Find the 45th term of an A.P. whose 13th term is 116 and 21st term is 236.

3. What should come in place of question mark (?) in the following number series:
2, 7, 25, 84, 268, ?, 2523

4. In the series _ b _ a _ _ c b c _ _ c; fill in the six blanks ( _ ) using one of the following given four choices such that the series follows a specific order

5. In the sequence 1, 8, 3, 2, 8, 5, 8, 2, 5, 8, 3 how many such 8s are there which are either immediately preceded by 2 or immediately followed by 3