Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word from the given alternatives.

What is the value of Cot 45°+ 1/3 Cosec 60°?

When a number is increased by 28, it becomes 107% of itself. What is the number?

If xy = -18 and x2+ y2= 85, then find the value of (x + y).

If α and β are the roots of equation x2 – 2x + 4 = 0, then what is the equation whose roots are α3/β2 and β3/α2?

The length and breadth of a rectangle is in the ratio of 3 : 1. If its perimeter is 96 m, then what is the length of the rectangle?

What is the length of the side of an equilateral triangle, if its area is 64√3 sq cm?

A and B together do a job in 12 days and A could do the job in 20 days if he worked alone. How many days would B take to do the job if he worked alone?