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If, for a positive integer n, the quadra...

If, for a positive integer n, the quadratic equation, `x(x + 1) + (x + 1)(x + 2) +.....+ (x +bar( n-1))(x + n) = 10n` has two consecutive integral solutions, then n is equal to

A

11

B

12

C

9

D

10

Text Solution

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The correct Answer is:
A
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