Quantitative Aptitude - Arithmetic Ability Questions

What is the equation of the line which passes through the points (3,­2) and (5,3)?

What is the value of equation a3+b3+c3-3abc if a2+b2+c2=ab+bc+ca+4 and a+b+c = 4.

If the radius of the cylinder is decreased by 20%, then by how much percent the height must be increased, so that the volume of the cylinder remains same?

P, Q and R are channels which discharge solutions A,B and C respectively in a tank. When the tank is empty and all the three channels are opened what is the proportion of the solution C in the tank after 3 minutes, if the channels P, Q and R can fill the tank from empty to full in 30 minutes and 20 minutes and 10 minutes respectively when they are opened one at a time.

Average age of 6 boys is 14 years. Average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?

If a person bought an item for Rs. 96 and sold it at a profit of 12.5%, the selling price of the item was

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

In an isosceles trapezium ______.