Major Competitive Exams
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Q. A discount of 10% is given on a product that costs $500. If the product is then sold for $450, what is the actual discount given?
Q. A discount of 10% is given on a product that costs $500. If the product is then sold for $450, what is the profit or loss percentage?
Q. A discount of 10% on a book priced at $50 results in a selling price of what?
Q. A discount of 10% on a marked price results in a selling price of $90. What is the marked price? (2023)
Q. A discount of 15% is given on a product that costs $120. What is the final price after the discount?
Q. A discount of 15% is given on a product that costs $80. What is the final price after the discount?
Q. A discount of 15% on a marked price results in a selling price of $255. What was the marked price?
Q. A discount of 15% on a product results in a selling price of $255. What was the marked price?
Q. A discount of 25% on a marked price results in a selling price of $75. What was the marked price?
Q. A discount of 25% on a product results in a selling price of $150. What was the original price? (2023)
Q. A disk and a ring of the same mass and radius are released from rest at the same height. Which one reaches the ground first?
Q. A disk and a ring of the same mass and radius are rolling down an incline. Which one will have a greater translational speed at the bottom?
Q. A disk and a ring of the same mass and radius are rolling down an incline. Which will reach the bottom first?
Q. A disk and a ring of the same mass and radius are rolling down the same incline. Which one has a greater acceleration? (2019)
Q. A disk and a ring of the same mass and radius are rolling without slipping down an incline. Which one will have a greater translational speed at the bottom?
Q. A disk and a ring of the same mass and radius are rolling without slipping. Which one will reach the bottom of an incline first?
Q. A disk is rotating with an angular velocity of 10 rad/s. If it experiences a constant angular acceleration of 2 rad/s², what will be its angular velocity after 5 seconds?
Q. A disk of radius R and mass M is rotating about its axis with an angular velocity ω. What is the angular momentum of the disk?
Q. A disk of radius R and mass M is rotating about its axis with an angular velocity ω. What is its angular momentum?
Q. A disk of radius R and mass M is rotating about its axis with an angular velocity ω. What is its kinetic energy?
Q. A disk rolls down a slope of height h. What fraction of its total energy is translational at the bottom?
Q. A disk rolls down a slope of height h. What is the ratio of translational to rotational kinetic energy at the bottom?
Q. A disk rolls down an incline. If the height of the incline is h, what is the speed of the disk at the bottom assuming no energy losses?
Q. A disk rolls without slipping on a horizontal surface. If its radius is R and it rolls with a linear speed v, what is the angular speed of the disk?
Q. A disk rotates about its axis with an angular velocity of ω. If its radius is doubled, what will be the new angular velocity to maintain the same linear velocity at the edge?
Q. A disk rotates about its axis with an angular velocity of ω. If its radius is doubled, what will be the new angular momentum?
Q. A disk rotates about its axis with an angular velocity of ω. If its radius is doubled, what will be the new angular momentum if the mass remains the same?
Q. A disk rotates about its axis with an angular velocity of ω. If its radius is doubled while keeping the mass constant, what will be the new moment of inertia?
Q. A disk rotates about its axis with an angular velocity of ω. If its radius is doubled while keeping the mass constant, what will be the new angular momentum?
Q. A disk rotates about its axis with an angular velocity of ω. If its radius is doubled, what will be the new angular velocity to conserve angular momentum?
