Math, asked by komalpoddar83, 4 months ago

यदि A.P. १,17, 25, .... में पदों का योग 636 है तो
पदों की संख्या बताओ। -

Answers

Answered by shagufta226
0

Answer:

79

Step-by-step explanation:

an=636

a=9

d=17-9=8

an =a+(n-1)d

putting values on formula

636=9+(n-1)8

(636-9)/8=n+1

78.375=n+1

n=79

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