Math, asked by sonali2853, 11 months ago

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Answered by renuguddapanchal
1

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Answered by sunitagupta54637
1

The 16th term of the ap is 78

Given ,

A = 3

Difference ,d = 8-3=5

An =78

N = ?

Now,

An = a+(n-1)d

78 =3+(n-1)5

78-3/5 = n-1

75/5 =n-1

15+1 = n

16 = n

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