Question

find the number of in the follwing ap 2,7,11......97​

Answer 1

Answer:

Given : a = 2,

an = 97,

d = 7-2 = 5,

n = ?

an = a+(n-1)d

97 = 2+(n-1)5

97-2 = (n-1)5

95/5 = n-1

19 = n-1

20 = n

n = 20

Therefore , 20 terms in the given AP.

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