Explanation

The next letter in the sequence c, e, h, l, q is W.

The series follows an increasing pattern of alphabetical gaps, where the number of letters skipped increases by one for each step (+2,+3,+4,+5,+6):

C + 2 = E

E + 3 = H

H + 4 = L

L + 5 = Q

Q + 6 = W (17th letter + 6 = 23rd letter, which is W). 

Explanation

Explanation

Explanation

Step 1: Find the pattern (differences)

6 − 2 = 4

12 − 6 = 6

20 − 12 = 8

30 − 20 = 10

42 − 30 = 12

The differences increase by 2 each time:

4, 6, 8, 10, 12, 14

Step 2: Find the next term

Next number = 42 + 14 = 56

Explanation

Given sequence: 4, 11, 7, 14, 10, 17, __, 20

Two alternating series are used:

First series: 4 → 7 → 10 → 13 (+3 each time)

Second series: 11 → 14 → 17 → 20 (+3 each time)

Missing number: 13

Explanation

Explanation

The given series is a square of natural number

(1)^2 = 1

(2)^2 = 4

(3)^2 =9

(4)^2 = 16

(5)^2 = 25

Explanation

Sequence: 12, 9, 6, ...

Decreasing by 3 each time

AP with a = 12, d = -3

Tn = a + (n-1)d

T15 = 12 + (15-1)(-3)

= 12 + 14(-3)

= 12 - 42

= -30

Last verified on 28-01-2026

Explanation

The sequence divides each term by 3:

• $486÷3=162$

• $162 ÷ 3 = 54$

• $54÷3=18$

• $18 ÷ 3 = 6$

• $6÷3=2$

Explanation

6 + 5 = 11

11 + 7 = 18

18 + 9 = 27

Pattern: +5, +7, +9

Last verified on 16-01-2026