Question

Which option is/are true for the whole numbers.

• A. All natural numbers are whole numbers.
• B. All whole numbers are natural number.
• C. All negative integers are whole numbers.
• D. All positive integers including 0 are whole numbers.

Answer 1

Answer: (A), (D)

All positive integers including 0 are whole numbers.

Natural numbers : 1, 2, 3, 4..........
Whole numbers : 0, 1, 2, 3, 4, 5......

Hence, all natural number are whole numbers but all whole numbers are not natural numbers
$\to$ Option A is correct.
$\to$ Option B is incorrect

Whole numbers are the positve integers starting from 0.
$\to$ Option D is correct.
$\to$ Option C is incorrect