Question

Solve :
240 = 3[(3^n) -1]

Answer 1

Answer:

4

Step-by-step explanation:

240 = 3 x 80 = 3(80) = 3(81 - 1) = 3(3⁴ - 1)

Compare both, 4 = n.

Otherwise,

=> 240 = 3(3ⁿ - 1)

=> 240/3 = (3ⁿ - 1)

=> 80 = 3ⁿ - 1

=> 80 + 1 = 3ⁿ

=> 81 = 3ⁿ

=> 3⁴ = 3ⁿ

Compare both side, 4 = n