A discount of 45% on an article is equal to the discount of 65% on other article. What is the respective ratio of the marked price of both the articles?
The ratio of the present ages of Shreya and her husband is 8 : 9. 9 years from now, ages of her husband and her son will be in the ratio of 9 : 4. If the present age of Shreya is 56 years, then what will be her son’s present age (in years)?