How many 4 digit number contain number 2 ?

How many 4 digit number contain number 2 ?

Quiz

Answer/Solution

3168

Steps/Work

total 4 digit no. = 9*10*10*10 = 9000
not containing 2 = 8*9*9*9 = 5832
total 4 digit number contain 2 = 9000 - 5832 = 3168
ANSWER:A