By selling 90 chocolates for Rs. 160, a chocolate trader loses 20%. How many chocolates should he sell for Rs. 96 to make a profit of 20%?

A conical vessel whose internal radius is 12 cm and height 50 cm. is full of liquid. The contents are emptied into a cylindrical vessel with radius (internal) 10 cm. The height to which the liquid rises in the cylindrical vessel is-

An article is sold at a profit of 25 %. If the selling price is doubled, the profit % will be: 

A manufacturer fixes his selling price at over the cost of production. If the cost of production goes up by 12 % and manufacturer raises his selling price by 10%, his percentage profit is 

If a side of a square is a, then what will be the area of the square on its diagonal?

Pie chart shows the percent of money spent by family on various item during 1999. Study the graph and answer these questions.

If the total amount spent was Rs. 46,000, how much money was spent on clothing and housing together?

Direction: Study the following graph carefully and answer the following questions.

What is the ratio of companies having more demand than production to those having more production than demand?

If ABCDEF is a regular hexagon, then what is the value (in degrees) of ∠ADB?