Quantitative Aptitude - Arithmetic Ability Questions

The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to

a% of b + b% of a = ______

Selling price of a table is Rs 2808. If profit percentage is 17%, then what is the cost price (in Rs) of table?

The point Q(a,b) is first reflected in y­axis to Q1 and Q1 is reflected in x­axis to (­6,2). The co­ordinates of point Q are

If x = 1 – y and x2 = 2 – y2, then what is the value of xy?

What is the unit place digit in the expansion of  773?

In a class of 39 students there are 26 girls. The average weight of these girls is 42 Kgs and average weight of the full class is 48 kgs. What is the average weight (in kgs) of the boys of the class?

The circumference of a circle is 88 cm, find its area?