Asked by singh
How many six digit can be formed using the digits 0, 1, 2, 3, 4, 5 which are divisible by 4 ?
Answers
Answered by
oobleck
It must start with one of the 5 nonzero digits.
since 100 is divisible by 4, that means you only have to make sure that the last two digits are divisible by 4. There are 25 multiples of 4 less than 100.
So, there are 5 * 6^3 * 25 = 27000 different possibilities
since 100 is divisible by 4, that means you only have to make sure that the last two digits are divisible by 4. There are 25 multiples of 4 less than 100.
So, there are 5 * 6^3 * 25 = 27000 different possibilities
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