A kite is flying in the sky. The length of string between a point on the ground and kite is 420 m. The angle of elevation of string with the ground is 30^o. Assuming that there is no slack in the string, then what is the height (in metres) of the kite?

If a , b , c are in AP and x , y and z are in GP , then $${x^{b-c}.{y^{c-a}.z^{a-b}=?}}$$

The total number of students in sections A and B of a class is 72. The ratio of the number of students in A and B is 7 :5 . The average weight (in kg) of the students in section B is 20% more than that of the students in section A. If the average weight of all the students in the class is 52 kg, then what is the average weight (in kg) of the students in section B?

From a point P on a level ground, the angle of elevation of the top tower is 30°. If the tower is 100 meter high, the distance of point P from the foot of the tower is:

If the cost price of an article is 5/9 of its marked price and the profit is 20% then what is the discount percentage?

The length of the diagonal of a square is 'a' cm. Which of the following represents the area of the square (in sq. cm)? 

If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?

A book seller allowed 10 % discount on printed price. He gets 30 % commission from publisher. His profit in percent will be?