MCQ
xC7 −x C5 = 0, then x =:
- A7
- B5
- C12
- D10
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If x, 2y and 3z are in A.P. where the distinct numbers x, y and z are in G.P., then the common ratio of the G.P. is:
$3$
$\frac{1}{3}$
$2$
$\frac{1}{2}$
When a die is thrown, list the outcomes of an event of getting:
I. A prime number, II. Not a prime number.