Quantitative Aptitude - Arithmetic Ability Questions

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

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

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

What is the value of sec 5π/4?

What are the co­-ordinates of the mid point of the segment joining points C(0,­-3) and D(8,5)?

Find the value of 'y' if y84 = 225

Three angles of a quadrilateral are 60°,90°and 100°. Then the fourth angle of the quadrilateral is

ABC is a right angled triangle with angle A = 90 deg. Then the value of cos2A+cos2B+cos2C is