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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If 3, x, y, 48 are in GP and x, y, 45 in AP, find x and y.
Calculate the mean of these numbers:
18, 14, 22, 16, 20, 12
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The 5th term of an AP is 23 and the 12th term is 51. Find the 20th term.
In a geometric progression, the first term is 4 and the common ratio is 2. If the sum of the first n terms is 252, what is the value of n?
A spent 36% and 25% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 25% and 40% to his mother and brother, respec...
What is the mode of the given data?
5, 7, 9, 7, 3, 7, 5, 7, 8, 6, 7
nth term of an AP is 0. If AP is 63, 60, 57…, then find the value of n.
