stion 2.a) Find the middle term (s) of the A. P:4, 9, 14,149. – InterviewSolution

1.

stion 2.a) Find the middle term (s) of the A. P:4, 9, 14,149.

Answer»

n th term = a+ (n-1)d149 = 4 + (n-1)5=> 145/5 = n -1=> 29 + 1 = n=> n = 30.

Middle terms are 15th term and 16th term.

15th term = a+ (n-1)d = 4+ 14(5)= 4+ 70= 74. 16th term = 15th term + d= 74+5 = 79.

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