If M is the mean of the first 100 even natural numbers, then what is the mean of the first 100 odd natural numbers ?

The difference between the outside and the inside surface area of a cylindrical pipe 14…

The ratio of the radius of base to the height of a cylinder is 2…

A solid sphere of diameter 60 mm is melted to stretch into a wire of…

A cone and a hemisphere have equal bases and equal volumes. What is the ratio…

A vertical tower standing at the corner of a rectangular field subtends angles of 60°…