Question

The number of three-digit even numbers, formed by the digits $0,1,3,4,6,7$ if the repetition of digits is not allowed, is

Answer 1

Three digit even number by $0,1,3,4,6,7$

When zero is at unit place

$\Rightarrow 4\times 5\times 1=20$
When zero is not at unit place

$=4\times 4\times 2=32$
Total three digit even number $=20+32=52$