A physical quantity ' y ' is represented by the formula y=m^2 r^-4 g^x l^-3/2 If the percentage errors found in y, m, r, l and g are 18,1,0.5,4 and p…

A physical quantity ' $\displaystyle y$ ' is represented by the formula $\displaystyle y=m^2 r^{-4} g^x l^{-\frac{3}{2}}$ If the percentage errors found in $\displaystyle y, m, r, l$ and $\displaystyle g$ are $\displaystyle 18,1,0.5,4$ and $\displaystyle p$ respectively, then find the value of $\displaystyle x$ and $\displaystyle p$.