Quantitative Aptitude – Sequence and Series – if a(base1), a(base2)

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Quantitative Aptitude – Sequence and Series – if a(base1), a(base2)
Q. If a(base1), a(base2), … are in A.P., then, 1/√a(base1)+√a(base2) + 1/√a(base2)+√a(base3) + … + 1/√a(base n)+√a(base n + 1) is equal to?

a) n-1/√a(base1)+√a(base n)
b) n/√a(base1)+√a(base n + 1)
c) n-1/√a(base1)+√a(base n – 1)
d) n/√a(base1)-√a(base n + 1)

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