Question

The first and the last term of an A.P. having finite number of terms are respectively -2 and 124 and the
sum of the A.P. is 6161. Find the number of terms in the AP​

Answer 1

Answer:

the correct answer is 101 terms.

Step-by-step explanation:

AS WE HAVE GIVEN

FIRST TERM IS -2 AND LAST TERM IS 124.

THE SUM IS 6161

Sn=6161 a=-2 l=124

By using the formula of sum that is

Sn=n/2(a+l)

6161=n/2(-2+124)

6161=n/2×122

6161×2/122=n

12322/122=n

101=n

Hence the no. of terms are 101.

i hope it will help you so please make it as brainlliest!

Answer 2

Answer:

->. n=101. & d=1.26.

Step-by-step explanation:

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