2 ^ (-3) * n = 8 ^ (-3) +12 ^ (-5)? , Then 32n =?
This is a non gmat question but very similar. Don't have the options.
This is a non gmat question but very similar. Don't have the options.
2^(-3) * n = (2^3)^(-3) +(2^2 * 3)^(-5)
2^(-3) * n = 2^(-9) + 2^(-10) * 3^(-5)
2^(-3) * n = 2^(-3) {2^(-6)+ 2^(-7) * 3^(-5)}
n = 2^(-6) + 2^(-7) * 3^(-5)
n = 2^(-6) {1 + 1/(2*243)}
n = 1/64 {1 + 1/486}
So, 32n = 32/64 {487/486} = ½ {487/486}
Solving, we get 32n = 487/972
