Question

25) The number of 4
digit
even numbers
that can be formed if 0,1, 2, 3, 7, 8 ​

Answer 1

Answer:

First let us find the total no.of four digit arrengement

even digits =2,8,0 (3 digits)

5433

total no of cases = 5*4*3*3=180

excluding the ones that start with 0.

0432

this time the last can take 1 of two option.

only 2,8

no.of numbers starting with 0= 4*3*2=24

Ans= 180-24 = 156

may this help you...