Question

Two-digit numbers are formed using the digit 0,1,2 and 3 without repeating.what is the value of n(S)​

Answer 1

Step-by-step explanation:

12,13,21,23,31,32

n(s)=6

Answer 2

Answer:

n(s)=9

Step-by-step explanation:

The two digit numbers formed without  repitition are

S={10,12,13,20,21,23,30,31,32}

and so,

n(s)=9