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UPSC NDA 2 2022 Mathematics Solved Paper

Question Numbers: 19-21

Let P be the sum of first n positive terms of an increasing arithmetic progression A. Let Q be the sum of first n positive terms of another increasing arithmetic progression B.

Let P ∶

Q = (5n + 4

) ∶ (9n + 6)

Question : 20 of 120

Marks: +1, -0

What is the ratio of their 10th terms ?

$\frac{11}{29}$
$\frac{22}{49}$
$\frac{33}{59}$
$\frac{44}{69}$

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