Question

 8. 11, 8, 5, 2, … In this A.P. which term is number-151? *​

Answer 1

Answer:

$\huge{ \underline{ \underline{ \red{ \pink{ \purple{ \orange{ \green{ \blue{ }{a} }{n} }{s} }{w} }{e} }{r} }{ } }{} }{}$

GIVEN

a = 11, d = a2-a1 = 5-8 = -3

an = -151

an = a+(n-1)d

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

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

-162 = (n-1)-3

(n-1) = -162/-3

(n-1) = 54

n = 54+1

n = 55

so, -151 is a term of the ap