JEE Advanced 2016

JEE Main 2016 Mathematics question on Sequences and Series

Let bi>1b_i > 1 for i=1,2,…,101i = 1, 2, \ldots, 101. Suppose log⁡eb1,log⁡eb2,…,log⁡eb101\log_e b_1, \log_e b_2, \ldots, \log_e b_{101} are in AP with the common difference log⁡e2\log_e 2. Suppose a1,a2,…,a101a_1, a_2, \ldots, a_{101} are in AP such that a1=b1a_1 = b_1 and a51=b51a_{51} = b_{51}. If t=b1+b2+…+b51t = b_1 + b_2 + \ldots + b_{51} and s=a1+a2+…+a51s = a_1 + a_2 + \ldots + a_{51}, then
  1. A.
    s>ts > t and a101>b101a_{101} > b_{101}
  2. B.
    s>ts > t and a101<b101a_{101} < b_{101}
  3. C.
    s<ts < t and a101>b101a_{101} > b_{101}
  4. D.
    s<ts < t and a101<b101a_{101} < b_{101}
Show answer

Correct option: B

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