Exams

The angles of elevation of the top of a tower 72 metre high from the top and bottom of a building are 30° and 60° respectively. What is the height (in metres) of building?

For a price taking firm, average revenue is ______ market price.

During the free fall of the object, the decrease in potential energy, at any point in its path, appears as an equal amount of increase in _________________.

If Y is the brother of X, Y is Z's son then Z's father is X's ___.

Which one of the following elements has the lowest atomic mass?

Which of the following does not represent the things that make a 'Smart City', under the smart city campaign?

As of February 2018, who owns the Delhi-based IPL team "Delhi Daredevils"?

Present ages of R and P are in the ratio of 9 : 11 respectively. After 7 years, their ages will be in the ratio of 26 : 31 and sum of their ages will be 114 years. What is the present age (in years) of P?