Question
How many values of 'k' ('k' is a natural number) are
possible if '7854k8' is always divisible by 8?Solution
A number is divisible by 8 when last three digits of number is divisible by 8.
'4k8' is divisible by 8 when 'k' = 0, 4 and 8
But 0 is not a natural number. So, there are 2 possible values of 'k'.
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