TESTfunda - CAT Question of the Day 22-Jul-12

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Testfunda
22-Jul-12
CAT Question of the Day
Let p = n4 + 4n

Here n is a natural number greater than 1.

Which of the following statement(s) is(are) definitely true?
  1.  p is a composite number for all possible n.
  2. p is prime number only for one odd value of n.
  3. p is prime number only for one odd value of n.

OPTIONS
 
 1)1 only
 2)2 and 3
 3)2 only
 4)None of the statements are definitely true
Tip of the Day
A quadrilateral is said to be a cyclic quadrilateral if it is possible to draw a circle passing through all the four vertices of the quadrilateral. In a cyclic quadrilateral, opposite angles are supplementary and the external angle is equal to the interior opposite angle.
Last year's Question of the day (21-Jul-11)
Tangents are drawn from a point P on x2 + y2 = 4r2 to the circle x2 + y2 = r2. The tangents touch the smaller circle at points Q and R. The centroid of ΔPQR
OPTIONS
 
 1)is at a distance r from chord QR.
 2)does not lie on line joining the origin and point P.
 3)lies on x2 + y2 = r2

 4)is at a distance 1.5r from P
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