1.

We have to find the value of n in this equation.

Answer»

Given,

 2 = 60/N * √n/90

2 = 60√n / 90 n

2 = 2√n / 3 n

2 * 3 n = 2√n

6 n = 2 √n

6 n / 2 =√n

3 n = √n

( 3 n ) ^ 2 = n

9 n^2 = n

9 n ^ 2 / n = 1

9 n = 1

n = 1 / 9


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