Profit and Loss Practice Test 4

CP of 6 articles = SP of 5 articles
CP of 6 articles = Rs 6
CP of 1 article = $\frac{6}{6}$ = Re 1
SP of 5 articles = Rs 6
SP of 1 articles = $\frac{6}{5}$ = Rs 1.2
Profit per cent on each article $=\frac{\mathit{S}\mathit{P}-\mathit{C}\mathit{P}}{\mathit{C}\mathit{P}}\times 100$ $=\frac{1.2-1}{1}\times 100=20\%$