Math, asked by vinayprabhas1226, 10 months ago

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

A) 28 B) 87 C) 51 D) 17

Answers

Answered by skarankumar184

0

Answer:

B) 87 answer of this question

Answered by hrudhikasurendran

0

Answer51

Step-by-step explanation:a+2d=-9-(1)

a+6d=11-(2)

(2)-(1)

4d=11+9

4d=20

d=5

15th term =7th term+(8×5)

=11+(8×5)

=11+40

=51

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