← CAT 2019 Slot 2 QA

CAT 2019 Slot 2 QA · Question 5

Let a1 , a2 be integers such that a1 - a2 + a3 - a4 + ........ +(-1)n-1 an = n , for n ≥ 1. Then a51 + a52 + ........ + a1023 equals

  1. A.
    -1
  2. B.
    1
  3. C.
    0
  4. D.
    10

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