Question
If n is an integer, how many values of n will give an integral value of(16nz+7n+6)n? (CAT 1997)
Answer: Option C
:
C
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C
Ans: (c)
(16nz+7n+6)n=16n+7+6n;
Since n is an integer, hence for the entire expression to become an integer, (6n) should be an integer. And (6n) can be integer for n=1,2,3,6. Hence n has 4 values.
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