📢
English Medium / Class 4 / Intelligence Test / Comprehension -Numbers
Comprehension -Numbers
Previous Next

Introduction

Comprehension - Numbers involves analyzing a given series of numbers to identify specific patterns, frequency of digits, or mathematical sequences. This topic is essential for developing logical reasoning in Grade 4 students.

Explanation Step by Step

To solve number series questions, first observe the entire sequence. Identify the criteria mentioned in the question, such as 'immediately preceding' or 'divisibility', and mark the occurrences carefully.

Sub-topics of Comprehension - Numbers

Numbers

Focuses on identifying digit patterns and sequences within a numerical string based on specific conditions.

Examples

Example 1
Sequence: 23525245242523254245324252. How many times is 5 followed by 2?
Look for the pair '52'. In the given series, this pair appears 5 times.
Answer: 5 times
Example 2
Find the next number: 201, 302, 403, 504, ?
Calculate the difference: 302 - 201 = 101. Adding 101 to 504 gives 605.
Answer: 605
Example 3
How many numbers are divisible by both 3 and 5 in the list: 42, 35, 60, 15, 10, 55, 70, 45, 40, 75?
Find numbers divisible by 15 (LCM of 3 and 5): 60, 15, 45, 75.
Answer: 4

Tricks and Shortcuts

Use the LCM (Least Common Multiple) for questions involving divisibility by two different numbers to save time.

Common Mistakes

Mixing up 'preceding' (before) and 'following' (after) positions in a number string.

Practice Questions

  1. Identify the missing number: 10, 20, 30, 40, ?
  2. In the series 98989, how many times does 8 appear?
  3. Which number in the series 12, 18, 24, 30 is not divisible by 4?

Revision Summary

Always double-check the count of digits and ensure the mathematical logic (addition/subtraction) is consistent across the series.

Whats New