The number of students in 3 classes is in the ratio 2 : 3 : 4. If 12 students are increased in each class this ratio cha…

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…

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

Which of the following represents ab = 64?

Two numbers are in the ratio 17 : 45. One third of the smaller is less than $$\frac{{\text{1}}}{{\text{5}}}$$ of the big…

The ratio of the numbers of boys and girls in a school was 5 : 3. Some new boys and girls were admitted to the school, i…

The ratio of the ages of two persons is 4 : 7 and the age of one of them is greater than that of the other by 30 years. …

The bus fare and train fare of a place from kolkata were Rs. 20 and Rs. 30 respectively. Train fare has been increased b…