The linear equation such that each point on its graph has an ordinate four times its abscissa is: 

A ladder rests against a wall at a height of 10 meters. If the ladder makes 30° along the ground. Find the distance from the wall of the foot of the ladder.

The income of A and B are in the ratio of 4:7. A and B saves Rs. 4000 and 5000 respectively. If the expenditure of A is equal to 60% of the expenditure of B. Then, find the difference between their incomes.

The radius of the circumcircle of a right-angled triangle is 15 cm and the radius of its in circle is 6 cm. Find the sides of the triangle. 

If (2, 0) is a solution of the linear equation 2x + 3y = 5, then the value of k is: 

The ratio of two positive numbers is 3 : 4. The sum of their squares is 400. What is the sum of the numbers?

Study the following graph carefully to answer the given questions

P and R started the work jointly. A few days later U also joined them and thus all of them completed the whole work in 10 days. All of them were paid total Rs.600. What is the Share of U?

A pyramid has an equilateral triangle as its base, of which each side is 8 cm. Its slant edge is 24 cm. The whole surface area of the pyramid (in cm²) is: