Logical Reasoning

Sequence & Series

Easy

Choose the missing number (?) from given alternatives.

7 49 343
9 81 729
6 ? 216

7	49	343
9	81	729
6	?	216

130

✅ Correct Option: 3

Each row follows the pattern $n$ , $n^2$ , $n^3$ .

Row 1: $7, 49, 343$ . Row 2: $9, 81, 729$ .

For row 3 with $n=6$ , the middle term is $6^2 = 36$ , and indeed $6^3 = 216$ .

2026: 18 May Shift 1

How many 7s immediately preceded by 6 but not immediately followed by 4 are there in following series

7, 4, 2, 7, 6, 4, 3, 6, 7, 5, 3, 5, 7, 8, 4, 3, 7, 6, 7, 2, 4, 0, 6, 7, 4, 3

2026: 19 May Shift 1

Study the given pattern carefully and select the option that can replace the question mark (?).

3	7	6
8	16	14
18	?	30

2026: 22 May Shift 2

Find the next term in the alphanumeric series:

B7A, F8F, J11K, N16P, ?

2026: 21 May Shift 1

What will be the 21st term of the series given below ?

3, 9, 15, ........

2026: 24 May Shift 1

Complete the following series by choosing the right answer:

D4 F6 H8 J10 L12.....

2026: 12 May Shift 2

In the following series, some of the letters are missing. Identify the sequence of letters from the given options which will complete the series.

m n o n o _ q o p q r _ p _ rs _ u

(A) p

(B) q

(D) t

Choose the correct sequence answer from the options given below:

Choose the missing number (?) from given alternatives. 7493439817296?216