Quantitative Aptitude - Arithmetic Ability Questions

For x = 462+3, what is the value of x+22x-22+x+23x-23

A fan is listed at Rs. 150 with a discount of 20% . What additional discount must be offered to the customer to bring the net price to Rs. 108 ?

If 1/(cosecA ­ cotA) = x, then the value of x is

If xa+b+1=xa-b+a-ba+b, then x is equal to

A shopkeeper marks the price of his table 30% above the cost price. He allows his customers a discount of 12% on the marked price. What is the profit percentage?

The sum of a fraction and 3 times its reciprocal is 19/4. What is the fraction?

If x + √5 = 5 + √y, and x, y are positive integers, then the value of x+yx + y

Rakesh’s present age is 36 years. If 12 years ago, Deepak’s age was one-fourth of Rakesh’s age, then after 27 years what will be the age (in years) of Deepak?