Question

The number of all four-digit numbers which begin with 4 and end with either zero or five is:

• A. 200
• B. 64
• C. 256
• D. 32

Hint:

When counting such numbers, fix the given digits and count the possibilities for the remaining ones.

Answer 1

The Correct Option is A

We are given that the number is a 4-digit number starting with 4 and ending with either 0 or 5. The choices for the second and third digits are any digits from 0 to 9 (10 options for each). Thus, the total number of such 4-digit numbers is: \[ 1 \times 10 \times 10 \times 2 = 200 \]