(d) Let cost price of both article = 100x Profit on sell of 1st article = 40% of 100x = 40x Selling price of 1st article = 140x Selling price of 2nd Article =140x−
140x×25
100
=105x Profit of on 2nd Article = 105x – 100x = 5x Total profit percent =
45x×25
100
×105x Profit of on 2nd Article = 105x – 100x = 5x Total profit percent =