In a group of boys, play volleyball, play badminton and boys play cricket. Five boys play all the three games. 8 boys play atleast two of the three games. How many of them play only one game?
In an examination students fail in English and fail in Maths. If students fail in both the subjects, then students pass the examination. What is the total number of students taking the exam?
A crate resting on a rough horizontal floor is to be moved horizontally. The coefficient of static friction is. To start the crate moving with the weakest possible applied force, in what direction should the force be applied?
To measure the mass of a planet with the same radius as Earth, an astronaut drops an object from rest (relative to the planet) from an altitude of one radius above the surface. When the object hits its speed is 4 times what it would be if the same experiment were carried out for Earth. In units of Earth masses, the mass of the planet is:
A object moves in a horizontal circular track with a radius of . An external force of , always tangent to the track, causes the object to speed up as it goes around. The work done by the external force as the mass makes one revolution is:
To enable the scheduled castes and scheduled tribes to avail themselves of benefits of the preferential rights conferred on them by the Constitution, the President of India notifies them as such under?
