Question

How many numbers not exceeding $10000$ can be made using the digits $2,4,5,6,8$, if repetition of digits is allowed

• A. $341$
• B. $128$
• C. $780$
• D. $860$

Answer 1

The correct option is C $780$

Numbers less than $10000$

Repetition not allowed

Digits $2,4,6,8,5$

Nmber of single digit numbers$=5$

Number of two digit number $=25$ ways

Number of three digit numbers $=125$

Number of four digit numbers $=625$

Total possible numbers

$=625+125+25+5$

$=780$

Option $:C$