Which city hosted the Howdy Modi event?

The average weight of 24 students is 35 kg. If the weight of teacher is added the average increased by 400 gram. What is the weight of the teacher?

H.Y.V. refers to – 

Directions : In these questions , a part of the sentence is given in bold . Below are given alternatives to the bold part at (A) , (B) and (C) which may improve the sentence . Choose the correct alternative . In case no improvement is needed you answer is (D ) .

Stop bunking classes lest you are caught.

In which country did the Industrial Revolution first take place?

If x = b+c -2a, y=c+a-2b, z=a+b-2c, then the value of x²+y²-z²+2xy is : 

If each interior angle is doubled of each exterior angle of a regular polygon with n sides, then the value of n is