A vendor bought bananas at 6 for ₹ 10 and sold them at 4 for ₹ 6. Find his gain or loss percent. · ABC26GN2568

Suppose, number of bananas bought = L.C.M. of 6 and $4=12$. $$\begin{array}{ll} \therefore & \text { C.P. }=₹\left(\frac{10}{6} \times 12\right)=₹ 20 ; \text { S.P. }=₹\left(\frac{6}{4} \times 12\right)=₹ 18 . \\ \therefore & \text { Loss } \%=\left(\frac{2}{20} \times 100\right) \%=10 \% . \end{array}$$