Digits are not Repeated

2 digit number are formed form the digits 0,1,2,3,4 where digit are not repeated. B is the event that the number formed d is greater than 40, then n (B) is ………..

Digits are Repeated

The number of 3 digits can be formed with the digits 1,2,3,4,5 when digits may be repeated is

The largest number form by digits 4,7,9 and 0 (taking all the digits and some digits may be repeated) is

How many 3-digit even numbers can be formed from the digit 1,2,3,4,5,6, 9 if the digits can be repeated ?

How many 3 -digit even number can be formed form the digits 1,2,3,4,5,6 if the digits can be repeated?

How many numbers of 3 digits can be formed with the digits 1,2,3,4,5 when digits may be repeated?

Find the number of numbers of 5 digits than can be formed with the digits 0,1,2,3,4 if the digits can be repeated in the same number.

How many numbers of four digits can be formed with the digits 1,2,3,4,5 if the digits can be repeated in the same number?