Question

How many 4 digit number can be formed out of 0,1,2,3,4,5,6 and 8 if i) the number must be even with no repetition.
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Answer 1

2468, 8642, 6284, 4268 thats all man

Answer 2

Answer:

420

Step-by-step explanation:

For even number last digit could be 0, 2, 4, 6

But first digit cannot be 0

So, I) 6 ╳ 5 ╳ 4 = 120

ii) 5 ╳ 5 ╳ 4 = 100

iii) 5 ╳ 5 ╳ 4 = 100

V) 5 ╳ 5 ╳ 4 = 100

∴ Total number of 4 digit even number = 120 + 100 + 100 + 100 = 420