Quantitative Aptitude - Arithmetic Ability Questions

The ratio of cost price and selling price 25:26. The percent of profit will be

The average monthly salary of 19 members of a group is Rs. 16000. If one more members whose monthly salary is Rs. 20000 has joined the group, then the average salary of the group is

Simple interest on a certain sum of money for 3 years at 14% per annum is half the compound interest on Rs. 10000 for 2 years at 10% per annum. The sum placed on simple interest is

Radius of cross section of a solid right circular cylindrical rod is 3.2 dm. The rod is melted and 44 equal solid cubes of side 8 cm are formed. The length of the rod is (Take Π = 22/7)

30% of a number exceeds 25% of the same number by 27. What is the value of the number?

If x-1x = 10, then find the value of x4+1x2

If secθ + tanθ = 4, then secθ - tanθ = ?

A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?