Practice30 Create account

Find the missing number: 2, 5, 11, 23, ?

Class 8Patterns in NumbersNumber System

A94
B42
C52
D47

Step-by-Step Solution

Each term is double the previous plus 1:

2 \times 2 + 1 = 5, 5 \times 2 + 1 = 11, 11 \times 2 + 1 = 23, 23 \times 2 + 1 = 47

.

Answer: D) 47

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Patterns in Numbers practice questions

More Class 8 Patterns in Numbers practice

The multiples of 4 form the pattern 4, 8, 12, 16, ... with nth term 4n. How many…The digit sum of 36 is 3 + 6 = 9, and 36 is a multiple of 9. Which of these numbers is…The pattern 7, 14, 21, 28 lists multiples of 7. Which number is NOT a multiple of 7?Rani writes the pattern of square numbers 1, 4, 9, 16, 25, 36 on the board. She notices…Arjun arranges marbles in rows: row 1 has 1 marble, row 2 has 3, row 3 has 5, row 4 has…