Quantitative Aptitude - Arithmetic Ability Questions

In a class when a test is conducted, mean of 25 students marks is 60 if mean of first 13 students marks is 70 and mean of last 13 students marks is 50 find the marks of the middle student when arranged in the ascending order.

If x = x2+11 2 - 2, then x3 + 5x2 + 12x is

If 5x - (1/2)(2x -7) = 5.5, then what is the value of x?

Find equation of the perpendicular bisector of segment joining the points (2,­6) and (4,0)?

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

What is the equation of the line which passes through the points (3,­2) and (5,3)?

What is the equation of the line passing through the point (0,­4) and making an angle of ­45° with the positive x­axis?

Choose the odd word/letters/number/number pair from the given alternatives.