Question
Which physical quantity remains constant during uniform
circular motion? ÂSolution
In uniform circular motion, only speed remains constant.  Velocity changes due to continuous change in direction.  Centripetal acceleration keeps the object moving in a circle.  Examples: Ferris wheel, satellites in orbit.
The cost price of an article is Rs. 600. How much profit did a trader get by selling the article, if it was sold at 15% discount?
Statement I:Â ...
What is the area of the circular field?
Statement I: The area of the largest square that can be inscribed in the given circular field is 6400 sq...
The two mixtures are called "P" and "Q." Only oil and diesel are contained in each of them. There are 500 liters of mixture "Q" in total. Determine how ...
What is the distance between two points A and B (in km)? Which of the following statement (s) is sufficient to give the answer:
I. Travelling at ...
What is the value of number x ?
I. The HCF of x and 16 is 8.
II. The LCM of ...
What is the total profit earned by two partners, A and B, in a business?
Statement I: A and B started a business by investing Rs. 50,000 and Rs. ...
What is the area of the hall?
I: Total cost (Labour + Material) of flooring the hall is Rs. 29,000
II: Labour cost of flooring the hall i...
What was the sum of the ages of the father and the daughter 5 years earlier?
A.  Ratio of the father’s present age to the daughter’s age af...
What is the monthly salary of Amit?
Statement I. Amit spends one-third of his salary on household expenses, one –fourth on travel expenses...
In an office, the number of men exceeds the number of women by 13. The average weight of all employees (men and women) is 5 kg hi...
