Given, The difference of price of two articles is 25% of the cheaper article. Cost of costly article is Rs. 10 more than that of cheaper article. Calculation: Let the cost of cheaper article be Rs. 4x Cost of costly article = 4x + 10 According to the question 4x+10–4x=4x×
25
100
⇒ 10 = x ⇒ x = 10 Cost of cheaper article = 4 × 10 = 40 Cost of costly article = 40 + 10 = 50 ∴ Sum of cost of both articles = 50 + 40 = 90