The ratio of ages of the father and mother was 11:10 when their son was born. The ratio of ages of the father and mother will be 19:18 When the son will be twice his present age. What is the ratio of present ages of father and mother?
How many job applicants had applied if the ratio of selected to unselected was . If less had applied and less selected then the ratio of selected to unselected would have been .
If by increasing the price of a ticket in the ratio the numbers of tickets sold fall in the ratio then what is the increase (in Rs.) in revenue if revenue before increase in price of ticket was ?