Quantitative Aptitude - Arithmetic Ability Questions

In which of the following quadrilaterals opposite angles are supplementary?

The sum of the lengths of the edges of a cube is equal to half the perimeter of a square. If the numerical value of the volume pf the cube is equal to one-sixth of the numerical value of the area of the square, then the length of one side of the square is

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

The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?

The LCM of 14, 21 and 35 is

ΔPQR is right angled at Q. If cosecP = 25/24, then what is the value of cotR ?

If the volumes of two right circular cones are in the ratio 1:4 and their diameters of bases in the ratio 4:5, then their heights will be in the ratio:

The average age of 27 students of a class is 22. If the age of the teacher is also added to their ages, then the average increases by one. Find the age of the teacher.