Math, asked by ani5456, 1 year ago

which term of an AP is 3,8,13............,is 78????

Answers

Answered by maroofahmad88
13
Heyyyy mate..

Here is your answer..

given, sequence>>>>> 3,8,13...........is 78??


A = 3 common difference D = A2-A1= (8-3= 5)


Tñ= a+(n-1)×d


78= 3+(n-1)×5

78= 3+5n-5

78= 5n-2

5n= 78+2= 80

n= 80/5= 16

so answer is 16

hope it help you
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