1. The ratio of A to B is 4 : 5 and that of B to C is 2 ∶ 3. If A equals 800, then C equals:

2. If 10% of m is the same as 20% of n, then m : n is equal to:

3. An amount of Rs. 7200 is divided. The ratio of amount received by A ∶ B = 3 ∶ 1, B ∶ C = 1 ∶ 2 and C ∶ D = 2 ∶ 3. Find the amount received by (B + C).

4. In a college, the number of students studying English is 600 and the number of students studying Economics is 1/3 of studying English. If the total number of students studying English increased by 25% and the number of students studying Economics decreased by 10%, Find the ratio between them.

5. Three numbers are 20%, 120%, and 240% more than a fourth number. Find the ratio of the three numbers?

6. P, Q, R, and S started a business with the investment are in a ratio 4 : 5 : 6 : 7. As Q and R they were paid equal salaries. The ratio of Q's and R's total annual income is 9 : 10. If the total annual profit is 84000, What is Q's salary?

7. A's wealth is 8/9 times of B's and C's is 12/9 times of B's. What is the ratio of C's wealth to A's?

8. Which of the following pair has the same ratio as 1180 : 1652?

9. If a = (1/5)b, b = (3/7)c, then find the a : b : c.

10. Rs. 9900 is divided among X, Y and Z in the ratio of 2 : 3 : 7. Find the share of Y.

11. If the ratio between two numbers is 5 : 9, if 8 is subtracted from each, then the ratio become 1 ∶ 2, then the smallest number is

12. If A : B = 3 : 2 and B : C = 3 : 4 then A : C is equal to:

13. The income of A and B are in ratio 12 : 13, and expenditure of A and B are in the ratio 25 : 26, then what is the ratio of income and expenditure of B if saving of A and B are equal?

14. The sum of three number is 98. If the ratio between the first and second be 2 : 3 and that between the second and third be 5 : 8, then find the second number.

15. If the product of three numbers is 30,870 and the numbers are in the ratio 2 : 5 : 9, then the largest of them is?

16. If 4P = 5Q = 3R; then what is the ratio P: Q: R?

17. If 7 times of q is equal to p and 3 times of q is equal to r, then find the ratio of p ∶ q ∶ r.

18. The incomes of A, B and C are in the ratio 7 ∶ 9 ∶ 12 and their expenditures are in the ratio 8 ∶ 9 ∶ 15. If A's saving is one-fourth of his income, then the ratio of savings of A, B and C is

19. Ram distributed a certain number of toffees among his sisters Rita, Sonali, and Sona in the ratio 3 : 3 : 7. Sona distributed the toffee that he received among his friends Raju, Rohan, and Ratan in the ratio 1 : 3 : 4 respectively. If Raju received 28 toffees. How many toffees distributed by Ram?

20. If s : t = 6 : 7, then (4s + 4t)/(4s - 4t) is equal to