Quantitative Aptitude - Arithmetic Ability Questions

The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)

If a+1b=1 and b+1c=1 , then the value of c+1a is

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

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

What is the fourth proportional to 6, 24 and 83?

AB is the diameter of a circle with center O and P be a point on its circumference. If ∡POA = 120°, then the value of ∡PBO is

If 3a+4b3c+4d = 3a-4b3c-4d, then 

What is the value of 1.23+0.83+0.73-2.0161.351.22+0.82+0.72-0.96-0.84-0.56 =