Major Competitive Exams
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Q. A retailer buys a bicycle for $300 and sells it for $360. What is the profit percentage? (2023)
Q. A retailer buys a watch for $120 and sells it at a profit of 15%. What is the selling price?
Q. A retailer buys a watch for $150 and sells it at a profit of 25%. What is the selling price? (2023)
Q. A retailer buys a watch for $150 and sells it for $180. What is the profit percentage?
Q. A retailer buys a watch for $300 and sells it at a profit of 15%. What is the selling price?
Q. A retailer sells a bicycle for $300 after applying a discount of 10%. What was the original price of the bicycle?
Q. A rhombus has diagonals of lengths 12 cm and 16 cm. What is the area of the rhombus?
Q. A rigid body is rotating about a fixed axis with an angular velocity ω. If its moment of inertia is I, what is its angular momentum?
Q. A rigid body is rotating about a fixed axis with an angular velocity ω. If the moment of inertia of the body is I, what is its angular momentum?
Q. A rigid body is rotating about a fixed axis with an angular velocity ω. If the moment of inertia of the body is I, what is the angular momentum of the body?
Q. A rigid body is rotating about a fixed axis. If the moment of inertia of the body is I and it is rotating with an angular velocity ω, what is its angular momentum?
Q. A rigid body rotates about a fixed axis with an angular velocity ω. If the moment of inertia of the body is I, what is the angular momentum of the body?
Q. A river basin has an area of 200 km². If the average rainfall is 1000 mm per year, what is the total volume of water received by the basin in a year?
Q. A river basin has an area of 200 square kilometers. If the average rainfall is 800 mm per year, how much water (in cubic meters) falls on the basin annually? (2019)
Q. A river basin has an area of 2000 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in cubic meters? (2000)
Q. A river basin has an area of 500 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in a year? (2019)
Q. A river basin has an area of 500 km². If the average rainfall is 800 mm per year, how much water falls on the basin in cubic meters? (2022)
Q. A river carries 1500 m³ of water per second. If the river's width is 25 m, what is the average depth of the river?
Q. A river flows at a rate of 5 m/s. If it takes 2 hours to travel a certain distance, what is the distance covered by the river?
Q. A river flows at a speed of 3 m/s. How far will it travel in 2 hours? (2020)
Q. A river flows at a speed of 4 km/h. If a boat can travel at 10 km/h in still water, what is the speed of the boat when going upstream?
Q. A river flows at a speed of 4 km/h. If a boat can travel at 10 km/h in still water, how long will it take the boat to travel 12 km upstream?
Q. A river flows at a speed of 4 km/h. If a boat travels downstream at 12 km/h, what is the speed of the boat relative to the river? (2020)
Q. A river flows through a region with a soil erosion rate of 5 tons per hectare per year. If the area of the watershed is 100 hectares, how much soil is eroded in a year?
Q. A river flows through a region with a soil retention capacity of 20% of its volume. If the river has a volume of 1000 m³, how much water can be retained by the soil? (2023)
Q. A river flows through a valley with a gradient of 1 in 1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2023)
Q. A river flows through a valley with a gradient of 1:1000. If the river descends 2 meters over a distance of 2000 meters, is the gradient consistent? (2022)
Q. A river has a cross-sectional area of 150 m² and flows at a velocity of 4 m/s. What is the discharge of the river? (2021)
Q. A river has a depth of 4 m and a width of 10 m. If the flow velocity is 2 m/s, what is the flow rate?
Q. A river has a length of 100 km and a drainage area of 500 km². What is the average discharge per square kilometer?
