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Three friends, returning from a movie, stopped to eat at a restaurant. After dinner,they paid their bill and noticed a bowl of mints at the front counter. Sita took 1/3 of the mints, but returned four

At a dinner party every two guests used a bowl of rice between them, every three guests used a bowl of dal between them and every four used a bowl of meat between them. There were altogether 65 dishes

A ball is dropped from a height of 20 m above the surface of water in a lake. The refractive index of water is 4/3. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At

The benches of a gallery in a cricket stadium are 1 m high and 1 m wide. A batsman strikes the ball at a level 1 m about the ground and hits a ball. The ball starts at 35 m/s at an angle of 53 degree

A steel ball (density ρsteel = 7200 kg/m3) is placed in an upward moving liquid Al (density ρAl = 2360 kg/m3, viscosity μAl = 1 * 10–3 Pa.s and Reynolds number = 5 * 105). The force (F) exerted o

Motion of a ball placed in a bowl is

A box contains 10 balls numbered 1 through 10. Anuj, anisha and amit pick a ball each, one after the other each time replacing the ball. What is the probability that anuj picks a ball numbered less th