Question

Numbers 4, 6, 8 are given. Using these numbers how many 3 digit numbers can be constructed without repeating the digits:

• A. 4
• B. 6
• C. 7
• D. 8

Answer 1

Answer:

B. 6

By forming the 3digit number by using the digit 4, 6, 8

Without repetation,

In first digit{ 4, 6 , 8} used

2nd digit {2 digits are used}

3rd digit {only one digit is used}

$=3\times{2}\times{1}=6$

number of three digit number formed without repeating the given digits is 6.