CAT 2001 | Question: 48

Question

Let $n$ be the number of different $5$ digit numbers, divisible by $4$ with the digits $1, 2, 3, 4, 5$ and $6,$ no digit being repeated in the numbers. What is the value of $n?$

• A. $144$
• B. $168$
• C. $192$
• D. None of these

 

Answer 1

Answer will be 192

last two digits could be 12,32,52,24,64,16,36,56

Now numbers are 8 * 4C3 * 3! =192