Quantitative Aptitude - Arithmetic Ability Questions

The sum of the ages of father and son at present is 33. Two years ago the product of their ages was 28. What is the age of the father and the son?

In a triangle XYZ , which of the following conditions is true

The shopkeepers announce the same price of Rs. 700 for a sewing machine. The first offers successive discounts of 30% and 6% while the second offers successive discounts of 20% and 16%. The difference in their selling price is

A number is greater than five times its reciprocal by 19/2. Find the number.

The height of a tower is 300 meters. When its top is seen from top of another tower,then the angle of depression is 60°. The horizontal distance between the bases of the two towers is 120 metres. What is the height (in metres) of the small tower?

If the successive discounts be 20% , 10% and 5% , then the single equivalent rate of discount is

If P = 7 + 4√3 and PQ = 1, then what is the value of 1/P2 + 1/Q2?

If a shopkeeper sells an item at Rs 4200 which is marked as Rs 4800, then what is the discount (in %) that he is offering?