Math, asked by prabakaromprakash, 1 year ago

If 16th term of a GP is 9375 and its 4th term is 375 .find its 9th term?

Answers

Answered by Andy07
0

a + 15d = 9375. ........1

a + 3 d = 375. .........2

solving equations 1 and 2,

we get : a = -1875

d = 750

a9 = a + (n -1)d

a9 = -1875 + (9-1)750

a9 = -1875 + 8×750

a9 = 4125.

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