Question
Consider the given question and decide which of the
following statements is sufficient to answer the question.‘N’ is any natural number. When it will be divisible by 72?(I) ‘N’ is divisible be 9.(II) ‘N’ is divisible by 4.Solution
Any natural number ‘N’ is divisible by 72 if and only if it is divisible by both 9 and 8.
Statement I:
‘N’ is divisible by 9, but we do not know weather it is divisible by 8 or not
So, statement I is not sufficient to answer the question.
Statement I:
‘N’ is divisible by 4, but we do not know whether it is divisible by 8 and 9 or not
So, statement II is not sufficient to answer the question.
Therefore, neither statement (I) nor statement (II) is sufficient.
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