Math, asked by aleeshapo90, 1 month ago

The 5th term of an ap is 38.And the nineth term is 66. Find its 25th term

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Answers

Answered by Anonymous

1

Answer:

178

Step-by-step explanation:

an = a + (n -1)d

a5

38 = a + 4d. (1)

a 9

66 = a + 8d (2)

from eq 1 - 2

d = 7

and a = 10

therefore

a25 = 10 + (25 -1) 7

a 25 = 178

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