Source: Previous Question Papers
How many 2-digit numbers can be formed with the digits 3, 4, 7, 8, 9 if none of the digits is being repeated in any of the numbers so formed?
Options
Option A
30
Option B
31
Option C
25
Option D is correct
20
How many 2-digit numbers can be formed with the digits 3, 4, 7, 8, 9 if none of the digits is being repeated in any of the numbers so formed?
30
31
25
20