Question

which term of the ap 5 13 21 is ........181 ?​

Answer 1

Answer:

twenty third term will be 181

Step-by-step explanation:

let nth term is 181

from the given series we can conclude

a= 5

d= 8

the formula of A(nth) term = a + (n-1)d

substituting given values

181= 5 +(n-1)8

181-5=8n-8

184=8n

n=184/8

n=23

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