Geometric Progression Sum (Jee Mains) | ExamDuo
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Arithmetic and Geometric Progression
Medium
Geometric Progression Sum
If the sum of the second, fourth and sixth terms of a G.P. of positive terms is 21 and the sum of its eighth, tenth and twelfth terms is 15309, then the sum of its first nine terms is :
SELECT ONE OPTION
A
760
B
755
C
750
D
757
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