Question

(iii) Which term of the A.P. 11, 8, 5, 2, ... is – 151 ?​

Answer 1

Answer:

55th term is -151

Step-by-step explanation:

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Answer 2

Answer:

in this AP series, 1st term a=11

common difference d=(8-11)= -3

let -151 is the n th term

so ,

a+(n-1).d= -151

=> 11+(n-1).( -3)= -151

=> (n-1)( -3)= -151-11

=> -3n+3= -162

=> -3n= -162-3

=> -3n= -165

=> n= -165/-3

=> n=55

so,55th term is -151