Quantitative Aptitude - Arithmetic Ability Questions

The square root of 5776 is

R is 80% more efficient than S. If S alone can make a book in 90 days, then R alone can make the book in how many days?

The lengths of two parallel sides of a trapezium are 21 cm and 9 cm. If its height is 10 cm, then what is the area (in cm2) of the trapezium?

The length of the two adjacent sides of a rectangle inscribed in a circle are 5 cm and 12 cm respectively. Then the radius of the circle will be

What is the effective discount (in %) on two successive discounts of 20% and 10%?

The surface area of a sphere is 2464 cm². Find its diameter (in cm).

If in-radius of an equilateral triangle is 3 cm. Calculate the perimeter (in m) of the equilateral triangle.

Calculate the difference between the square of the largest and smallest two-digit prime numbers.