Question

Find the n^th term ofthe following sequence.
27, 18, 9,0, -9, -18.....​

Answer 1

Heya!!

Here's your answer!!

For the given sequence

18 - 27 = -9,

9 - 18 = -9

therefore, the difference is -9.

Hence, it is an arithmetic progression.

a = 27,. d = -9.

therefore, n th term = a + (n - 1)d

n th term = 27 + [(n - 1)] × -9]

= 27 + (- 9n + 9)

= 27 - 9n + 9 = 36 - 9n

n th term = 36 - 9n.

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Answer 2

therefore, P × 24(25)/2 × 10/100 × 1/12 = 5P/2

therefore, Amount deposited + 1 = Maturity amount

24 P + 5P/2 = 132500

therefore,

53P/2 = 132500

therefore,

₹5000

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it helps you,

thanks.