ABCD is parallelogram. P and Q are the mid points of sides BC and CD respectively. If the area of ∆ABC is 12 cm² then the area of ∆APQ is 

The measure of each of two opposite angles of a rhombus is 60° and the measure of one of its sides is 10 cm. The length of its smaller diagonal is: 

If an article is sold at 200 % profit then the ratio of its cost price to its selling price will be 

A man purchased a bed sheet for Rs. 450 and sold it at again of 10 % calculated on the selling price. The selling price of the bedsheets was 

An article is sold at a loss of 20 %. It yields Rs. 60 more when it is sold at a gain of 20 %. The cost price of the article is 

A car running at 7/11 of its own speed reached a place in 22 hrs. How much time could be saved if the car would run at its own speed?

A shopkeeper had 2000 kgs of rice. He sold a part of it at 11% profit and the rest at 17% profit, so that he made a total profit 15.2%. How much rice (in kgs) did he sell at 17% profit?

The angle of elevation of the top of two vertical towers as seen from the middle point of the line joining the foot of the towers are 60° and 30°, respectively. The ratio of the heights of the tower is