2 years ago

Which term of the Ap: 9,8,13,18.......is 79?Please don't post invalid answer..!!

Mathematics

1 answer:

GalinKa [24]2 years ago

4 0

$a {}^{n} = 79$

$n = ?$

$a = 3$

$79 = 3 + (n - 1) \times 5$

$76 = 5n - 5 \\ 81 = 5n \\ n = 16.2$

16.2 is the answer

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Which term of the Ap: 9,8,13,18.......is 79?Please don't post invalid answer..!!​

Which term of the Ap: 9,8,13,18.......is 79?Please don't post invalid answer..!!