Question

The repetition of the digit ios allowed, then the number of even natural number having 3 digits is

Answer 1

In a 3 digit number one’s place can be filled in 5 different ways with (0,2,4,6,8)

10’s place can be filled in 10 different ways

100’s place can be filled in 9 different ways

There fore total number of ways = 5X10X9 = 450

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