state gov Karnataka Forest Guard (ಅರಣ್ಯ ರಕ್ಷಕ) Mock Test 2023 Quantitative Aptitude Progression Arithmetic Progression
If the 2nd, the 31st and the nth term of an Arithmetic progression are respectively 7\(\frac{3}{4}\) , \(\frac{1}{2}\) and -6\(\frac{1}{2}\) then the sum of the first n terms of this progression is
1
44\(\frac{1}{4}\)
2
48\(\frac{1}{2}\)
3
51\(\frac{1}{3}\)
4
52\(\frac{3}{4}\)