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Indian Navy SSR (Sailor) Sequences and Series — practice questions

3 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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If the A.M. and G.M. of the roots of a quadratic equation are 8 and 5 respectively, the equation is:The sum $1^2 + 2^2 + \cdots + n^2$ equals:The sum to $n$ terms of a GP with first term $a = 2$ and ratio $r = 3$ is: