NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 1: Number System - True or False Questions
Question 91

Question. 91

Every whole number is the successor of another whole number.

Answer:

false

Detailed Answer with Explanation:

Step 1: What are whole numbers?
Whole numbers are: (0, 1, 2, 3, ldots)

Step 2: What does “successor” mean?
The successor of a number is the next number after it.
If a number is (n), its successor is (n + 1).

Step 3: Is every whole number a successor?
Look at the smallest whole number: (0).

If (0) were a successor of some whole number (k), then we would need:
(k + 1 = 0).

Solving this gives:
(k = -1).

Step 4: But (-1) is not a whole number.
So, there is no whole number whose successor is (0).

Conclusion:
Since (0) is not the successor of any whole number, the statement is false.

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 1: Number System – True or False Questions | Detailed Answers