The cost of kerosene per liter increased from N60 to N85. What is the percentage rate of increase?

simplify \(16^{\frac{-1}{2}}\times 4^{\frac{-1}{2}} \times 27^{\frac{1}{3}}\)

If log\(_{x^{\frac{1}{2}}}\)64  = 3, find the value of x

If \(\frac{1+\sqrt{2}}{1-\sqrt{2}}\) is expressed in the form of x+y√2 find the values of x and y

If X = {n\(^2\) + 1:n = 0,2,3} and Y = {n+1:n=2,3,5}, find X∩Y.