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4 January, 16:00

The first term of a geometric sequence is 3 and the multiplier, or ratio, is 2. What is the sum of the first 6 terms of the sequence?

A. 6

B. 9

C. 216

D. 189

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Answers (1)
  1. 4 January, 18:16
    0
    As first term in sequence is 3 so multiplying it by common ratio 5 we get 15, then multiplying 15 by 5 we get 45 and so on the sequence is

    3,15,45,225

    whose sum is 288
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