If A is a 3 × 3 matrix such that det (2A) = 64, then det A=?A shopkeeper sells an article at 20% profit. If the cost price of the article is increased by 25% and the shopkeeper sells the article at the same selli...
Ajay and Bijay can individually complete a task in 18 days and 24 days, respectively. If they work together to finish the task an...
The second derivative of y = tan⁻¹ x at x = 1 is:
A person sells two items, X and Y. The marked prices of X and Y are 25% and 40% higher than their cost prices, respectively. After a 10% discount on bot...
The equation 9x ² + 4y ² = 36 represents an ellipse. Its eccentricity is:
The average of 15 numbers is 32. If 2 is added to each number, then the new average will be:
If a person loses Rs 20 by selling an item for Rs 140 then what is the loss percentage?
From a point 30 m away from the base of a building, the angle of elevation to the top of the building is 60°. Find the height of the building.
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y and choose the...
