Quantitative Aptitude - Arithmetic Ability Questions

Area of 4 walls of a cuboid is 448 sq cm, its length is 18 cm and height is 8 cm. What is its breadth (in cm)?

If 11-13xx + 11-13yy + 11-13zz = 5 then what is the value of 1x + 1y + 1z = ?

If sec (3x – 20°) = cosec (3y + 20°), then what is the value of tan (x + y)?

Three consecutive natural numbers are such that the square of the greatest is greater than the product of the other two by 16. The smallest of these numbers is

Find the number that is as much greater than 49 as is less than 95.

A can do a work in 15 days and B in 20 days. If they work on it together for 5 days, then what fraction of work is left?

If x2+1x2 = 98, then x3+1x3 = ?

The third proportional of two numbers 4 and 20 is