Exams

The data collected from which one of the following methods is not a primary data?

The angle of elevation of the top of a 36 m tall tower from the initial position of a person on the ground was 60 deg. She walked away in a manner that the foot of the tower, her initial position and the final position were all in the same straight line. The angle of elevation of the top of the tower from her final position was 30 deg. How much did she walk from her initial position?

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the smallest angle.

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

b_a_c_bc_b_ a

A piece of paper is folded and punched as shown below in the question figures. From the given answer figures, indicate how it will appear when opened?

Which of the following physical quantities changes or tends to change the state of rest or of uniform motion of a body in a straight line?

Which of the following numbers is a prime number?

A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.