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Let a1, a2, ...... a50 are nob constant terms of A.P. and sum of n terms is given

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+1 vote
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in Mathematics by (75.4k points)

Let a1, a2, ...... a50 are nob constant terms of A.P. and sum of n terms is given by Sn = 50n + (n)(n - 7)A/2, then ordered pair (d, a50) is (where d is the common difference)

(1) (A, 45, A)

(2) (A, 50 + 46A)

(3) (2A, 46A)

(4) (2A, 50 + 49A)

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1 Answer

+1 vote
by (70.8k points)

The correct option (2) (A, 50 + 46A)  

Explanation:

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