The present age of A and B are in the ratio 5: 4. After 10 years the ratio becomes 7: 6. Find the present age of A.

A vessel contains some mixture of Water and Alcohol in the ratio 2 ∶ 1. 12 liters of mixture is removed and replaced with water and the final ratio becomes 4: 1. What is the amount of Alcohol in the initial Mixture?

If , then the value of is

G is the centroid of a triangle ABC, and the median is AD, the ratio of AD and GA is

A car can finish a certain journey in 10 hours at a speed of 42 kmph. In order to cover the same distance in 7 hours, the speed of the car (km/h) must be increased by:

The ratio of income of two persons is 5 : 3 and that of their expenditures is 9 : 5. If they save ₹ 1300 and ₹ 900 respectively. Their incomes are:

In ΔABC, ∠C=90° and D is a point on CB such that AD is the bisector of ∠A. If AC=5 cm and BC=12 cm, then what is the length of AD?

Study the given pie chart and answer the question that follows.
Distribution (Degree wise) of students studying in schools A, B, C, D and E
Total Number of students =9000

The total number of students in schools D and E is what percentage more than the total number of students in school B and C?