Walking at 5 km / h Harshit reaches his school from his house 15 minute early and walking at 3 km/h he is late by 9 minutes. What is the distance between his school and his house?

Direction: In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² – 2x - 8 = 0
II. y² – 7y - 60 = 0

A radio is sold for Rs.900 at 10% profit. If it had been sold for Rs 890, what would have been the actual profit or loss?

An item costing Rs. 840 was sold by a shopkeeper at a gain of 10 % and it was again sold by the new buyer at a loss of 5 %. Find selling price of the item is: 

The ratio between the volume (cm³) of a cylinder and the curved surface area (cm²) is numerically 14: 1. If the height of the cylinder is 50 cm, what is the volume of the cylinder (cm³) ?

If the height and the radius of the base of a cone are both doubled, the volume of the cone becomes _______ of its previous volume.

₹ 500 was invested at 12 % per annum simple interest and another certain sum of money invested at 10 % per annum simple interest . If the total interest on both the sum after 4 years is 480, the latter sum of money is

If in a triangle, the orthocenter lies on vertex, then the triangle is