Major Competitive Exams
Download Q&A
Q. A stone is tied to a string and swung in a vertical circle. At the highest point, the tension in the string is 5 N and the weight of the stone is 10 N. What is the speed of the stone at the highest point if the radius of the circle is 2 m?
Q. A stone is tied to a string and whirled in a horizontal circle. If the radius of the circle is doubled, what happens to the centripetal force required to maintain the circular motion at the same speed?
Q. A stone is tied to a string and whirled in a horizontal circle. If the radius of the circle is doubled, what happens to the centripetal force required to maintain the stone's circular motion at the same speed?
Q. A stone is tied to a string and whirled in a horizontal circle. If the radius of the circle is doubled, what happens to the centripetal force required to keep the stone moving in a circle at the same speed?
Q. A stone is tied to a string and whirled in a vertical circle of radius 1 m. What is the minimum speed at the top of the circle to keep the stone in circular motion?
Q. A store increases the price of an item by 25% and then offers a discount of 20% on the new price. What is the final price if the original price was $80?
Q. A store offers a 10% discount on a product that costs $200. If the store then applies an additional 5% discount on the already discounted price, what is the final selling price?
Q. A store offers a 20% discount on a jacket that originally costs $80. What is the sale price of the jacket?
Q. A store offers a 25% discount on a jacket originally priced at $120. What is the final price after the discount?
Q. A store offers a 25% discount on a jacket originally priced at $120. What is the final price after discount? (2023)
Q. A store offers a 25% discount on a jacket originally priced at $80. What is the final price after the discount?
Q. A store offers a 25% discount on a jacket that is originally priced at $80. If the store then increases the price by 10% after the discount, what is the final price of the jacket?
Q. A store offers a 25% discount on a jacket. If the jacket's original price is $80, what is the sale price of the jacket? (2023)
Q. A store offers a 25% discount on a product. If the selling price after discount is $75, what was the original price? (2023)
Q. A store offers a 25% discount on a shirt. If the original price of the shirt is $80, what is the sale price?
Q. A store offers a 25% discount on a shirt. If the original price of the shirt is $80, what is the sale price after the discount?
Q. A store offers a 30% discount on a jacket originally priced at $200. If the store then increases the price by 10% after the discount, what is the final price?
Q. A store offers a 30% discount on a jacket originally priced at $200. If the store then increases the price by 10% after the discount, what is the final price of the jacket?
Q. A store offers a 30% discount on a jacket originally priced at $300. If an additional 10% discount is applied on the discounted price, what is the final price?
Q. A store offers a 30% discount on a jacket that is originally priced at $200. If the store then applies an additional 10% discount on the already discounted price, what is the final selling price? (2023)
Q. A store offers a discount of 25% on a product. If the selling price is $75, what was the original price?
Q. A store offers a discount of 25% on a shirt that costs $40. What is the final price after the discount? (2023)
Q. A store offers a discount of 25% on a shirt that costs $40. What is the final price of the shirt after the discount?
Q. A store offers a discount of 30% on a jacket that is originally priced at $150. What is the amount of discount?
Q. A store sells a laptop for $800 after applying a discount of 20%. What was the marked price?
Q. A store sells a laptop for $800 after applying a discount of 20%. What was the original price of the laptop?
Q. A student calculates the density of a substance as 8.0 g/cm³ with an uncertainty of ±0.1 g/cm³. What is the density range?
Q. A student divides a number by 6 and gets a remainder of 4. If he divides the same number by 3, what will be the remainder? (2023)
Q. A student has a 70% chance of passing an exam. If he takes the exam twice, what is the probability that he passes at least once?
Q. A student has a 70% chance of passing an exam. What is the probability of failing the exam?
