Question

6.
How many four digit numbers can be formed, using 7, 5, 0, 2 only once in a
number?
(A) 4
(B) 12
(C) 9
(D) 18
Pls explain by short method.....not by counting one by one

Answer 1

The answer is 12. We can do this question by using fundamental principle of multiplication.(Permutations and Combinations) chapter 8 NCERT.

Answer 2

Answer:

13

Step-by-step explanation:

pls count.. other method islong and confusing