If a : b = 7 : 9 and b : c =15 : 7, then what is a : c? 

If A : B = 3 : 4, B : C = 5 : 7 and C : D = 8 : 9 then A : D is equal to 

If x : y = 3 : 1, then x³ – y³ : x³ + y³ = ? 

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

The ratio of the length of a school ground to its width is 5 : 2. If the width is 40 m, then the length is 

If the three numbers in the ratio 3 : 2 : 5 be such that the sum of the squares is equal to 1862 then which number is the middle one ? 

If 177 is divided into 3 parts in the ratio 1/ 2 : 2/3 : 4/5  then the second part is 

The ratio of ages of two students is 3 : 2. One is older to the other by 5 years. What is the age of the younger student ? 

The ratio of the age of a father to that of his son is 5: 2. If the product of their ages in years is 1000, then the father's age (in years) after 10 years will be : 

Harsha is 40 years old and Ritu is 60 years old. How many years ago was the ratio of their ages 3 : 5 ? 

Four years ago, the ratio of A’s age to B’s age was 11 : 14 and four years later their age will be in the ratio 13 : 16. The present age of A is 

Four years ago, the ratio of the age of A and B was 2 : 3 and after four years it will become 5 : 7. Find their present age.  

The ratio of two numbers is 3 : 8 and their difference is 115. The smaller of the two numbers is :

The sum of three numbers is 116. The ratio of second to the third is 9 : 16 and the first to the third is 1 : 4. The second number is 

The ratio between two numbers is 3 : 4. If each number is increased by 6, the ratio becomes 4 : 5. The difference between the numbers is 

Two numbers are in the ratio 3 : 5. If 6 is added to each of them, the ratio becomes 2 : 3. The numbers are (1) (2)  (3) (4) 

The ratio of the number of boys and girls of a school with 504 students is 13 : 11. What will be the new ratio if 12 more girls are admitted? 

The ratio of two numbers is 3 : 4 and their LCM is 48. The sum of the two numbers is : 

The ratio between two numbers is 2 : 3. If each number is increased by 4, the ratio between them becomes 5 : 7. The difference between the numbers is 

A mixture of 30 litres contain milk and water in the ratio of 7 : 3. How much water should be added to it so that the ratio of milk and water becomes 3 : 7 ?