1. 20:10 is equal to

2. Salaries of Ravi and Sumit are in the ratio 2:3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40:57. What is Sumit's salary?

4. A sum of Rs.312 was divided among 100 boys and girls in such a way that the boy gets Rs.3.60 and each girl Rs. 2.40 the number of girls is

6. Casper walks 5 km in one hour. The shop is half an hour away, how far is the shop in terms of km?

7. A bag contains 50 P, 25 P and 10 P coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type respectively

9. 15:30 is equal to

10. The salaries of A, B, and C are in the ratio of 1 : 2 : 3. The salary of B and C together is Rs. 6000. By what percent is the salary of C more than that of A?

11. Emma is told to make mix fruit juice with a 1:1 ratio of orange juice to pineapple juice. To make 1 liter of juice how much orange juice will she need

13. If a car goes 20 km in two hours, how far will it go in one hour?

14. The compounded ratio of (2 : 3), (6: 11) and (11 :2) is

15. Rachel needs to make lemonade from the lemonade syrup, she has to add syrup to water in the ratio of 1:6. How will Rachel make 14 cups of lemonade?

16. If Rs. 782 be divided into three parts, proportional to 12:23:3412:23:34, then the first part is?

17. 500:100 is equal to

18. If 0.75: x :: 5:8, then x is equal to:

19. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is

20. 200:100 is equal to