Question

Find the value on n. Solve it​

Answer 1

Step-by-step explanation:

$Given \: it \: \\ = \frac{1 + 3 + 5......upto \: n \: terms}{2 + 5 + 8......upto \: 8 terms} = 9 \\ = \frac{ \frac{n}{2}(2 \times 1 + (n - 1) \times 2) }{4(2 \times 2 + 7 \times 3)} = 9 \\ = \frac{n(1 + n - 1)}{100} = 9 \\ = {n}^{2} = 900 \\ = n = 30 \\ \\ \\ hope \: it \: will \: help \: you.$