Ratios and Proportion

If the ratio of boys to girls in a class is 3:4 and there are 21 boys, how many girls are there?

A recipe requires sugar and flour in the ratio 2:5. If you use 10 cups of flour, how much sugar is needed?

In a cricket team, the ratio of batsmen to bowlers is 5:6. If there are 11 players, how many are bowlers?

The ratio of the ages of Aamir and Salman is 7:9. After 3 years, the ratio will be 8:10. What is Aamir's current age?

A Bollywood movie's budget was divided among actors, sets, and marketing in the ratio 4:7:5. If the marketing budget was ₹50 lakhs, what was the total budget?

Two quantities are in the ratio 3:5. If the first quantity is increased by 20 and the second is decreased by 10, the new ratio becomes 2:3. Find the original quantities.

A train travels 150 km in the same time that a car travels 100 km. If the speed of the train is to the speed of the car as 5:3, what is the speed of the train?

In a class, the ratio of students who like cricket to those who like football is 7:5. If 24 students like neither, and the total number of students is 96, how many students like cricket?