EC > GATE 2013 SET-1 > Numerical Ability

Contributed by: Dr. Sarah Chen

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Find the sum to n terms of the series 10 + 84 + 734 + .....

A

(10ⁿ⁺¹ − 9)/9

B

(8ⁿ⁺¹ − 9)/9

C

(9ⁿ − 8)/8

D

(9ⁿ − 8ⁿ)/8

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Explanation

Correct : a

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