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Official 2019 Paper 1 · Q5

Paper 1Sequences & series

SS is a geometric sequence.

The sum of the first 6 terms of SS is equal to 9 times the sum of the first 3 terms of SS.

The 7th term of SS is 360.

Find the 1st term of SS.

A4027\frac{40}{27}
B409\frac{40}9
C403\frac{40}3
D4516\frac{45}{16}
E458\frac{45}8
F454\frac{45}4

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