Quantitative Aptitude - Arithmetic Ability Questions

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

A number is greater than 58 times its reciprocal by 3/4. What is the number?

ABC is an equilateral triangle of side 6 cm. If a circle of radius 1 cm is moving inside and along the sides of the triangle, then the locus of the centre of the circle is an equilateral triangle of side is

Compute 4923 / 547 - 10

What is the simplified value of (sec4 A – tan2 A) – (tan4 A + sec2 A)?

If 1/(1 + cosA) + 1/(1 ­- cosA) = x , then value of x is

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

A cylinder of radius 4.5 cm and height 12 cm just fits in another cylinder completely with their axis perpendicular. What is the radius (in cm) of second cylinder?