Quantitative Aptitude - Arithmetic Ability Questions

If selling price and cost price of an article are Rs. 684.25 and Rs. 595 respectively, then what is the profit percentage?

If percentage of profit made,when an article is sold for Rs.78, is twice as when it is sold for Rs.69, the cost price of the article is

The base and hypotenuse of a right angled triangle is 12 cm and 5 cm respectively. Find the circum-radius (in cm) of the triangle.

Find the maximum area of a rectangle field which is surrounded by a rope of 400 m.

Four pairs of words are given below out of which three are alike in some manner and one is different. Which is different from the rest?

The angle of elevation of an aeroplane from a point on the ground is 45°. After flying for 15 seconds, the elevation changes to 30°. If the aeroplane is flying at a height of 2500 metres, then the speed of the aeroplane in km/hr. is

The line passing through (4,3) and (y,0) is parallel to the line passing through (­-1,-­2) and (3,0). Find y?

In a triangle the length of the side opposite the angle which measures 60° is 15 cm, what is the length of the side opposite to the angle which measures 90°?