Let a_{1}, a_{2} ....., a_{n} be a given A.P. whose common difference is an integer and S_{n}=a_{1}+a_{2}+ .....+a_{n} If a_{1}=1, a_{n}=300 and 15 \leq n \leq 50, then the ordered pair ({S}_{ {n}-4} {a}_{ {n}-4} ) is equal to : [4 Sep 2020 Shift 2]

Correct Answer is : (2490, 248)

Sequences and Series Part 1

Section: Mathematics

Question : 6 of 100

Marks: +1, -0

Let a1,a2.....,an be a given A.P. whose common difference is an integer and Sn=a1+a2+ .....+an If a1=1,an=300 and 15 ≤n ≤50, then the ordered pair (Sn−4an−4) is equal to :

[4 Sep 2020 Shift 2]

(2480, 249)
(2490, 249)
(2490, 248)
(2480, 248)

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