Calculate EMF of concentration cell consisting of zinc electrodes,one immersed in a solution of 0.01M $Zn^{+2}$ ions and the other in a solution of 0.1M $Zn^{+2}$ ions at $25^{\large\circ}C$.The two solution are separated by a salt bridge

Question

$\begin{array}{1 1}(a)\;0.03V\\(b)\;0.09V\\(c)\;1.2V\\(d)\;-0.03V\end{array}$