Question

The number of numbers greater than 3000, which can be formed by using the digits 0,1,2,3,4,5 without repetition is _______

(a) 1240 

(b) 1280 

(c) 1320 

(d) 1380

Answer 1

Correct option: (d) 1380

Explanation:

4 digit numbers = 3 x 5 x 4 x 3 = 180

5 digit numbers = 5 x 5 x 4 x 3 x 2 = 600

6 digit numbers = 5 x 5 x 4 x 3 x 2 x 1 = 600

= Total numbers = 1380