The sum of n terms of two arithmetic progressions are in the ratio (2n + 3):(7n + 5). Find the ratio of their 9th terms.
Posted: Wed Jul 13, 2022 8:10 pm
a) 4:5
b) 5:4
c) 9:31
d) 31:9
b) 5:4
c) 9:31
d) 31:9
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