Question

7,13,19,-------205 find the number of terms in each of the following APS
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Answer 1

Step-by-step explanation:

a=7

d= 6

an= 205

an= a+(n-1)d

205= 7+(n-1)6

198 = (n-1) 6

198/6 = n-1

33= n-1

34 = n

Number of terms of the AP is 34

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Answer 2

Answer:

ans n= 34

Step-by-step explanation:

a=7 d = 13-7=6

an =205

205=7+(n-1)d

205=7+(n-1)6

205=7+6n-6

205=6n-1

205-1=6n

204=6n

n=204/6

n=34