Question

If xbar is the arithmetic mean of x1 x2 ......Xn. Then what is the arithmetic mean of x1+a , x2+a .....Xn+a

Answer 1

If x1, x2 , x3 .. Xn are consecutive natural numbers then the sum of 1/x1x2 + 1 /x2x3 + 1/ x3x3 + .. + n n x x 1 1 is

Answer 2

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