Quantitative Aptitude - Arithmetic Ability Questions

The sum of a non-zero number and 9 times its reciprocal is 10. What is the number?

On a certain Principal if the Simple interest for two years is Rs 4800 and Compound interest for the two years is Rs 5088, what is the rate of Interest?

The angle of elevation of the top of a tower, vertically erected in the middle of a paddy field, from two points on a horizontal line through the foot of the tower are given to be α and β (α>β). The height of the tower is h unit. A possible distance (in the same unit) between the points is

What is the value of [tan2 (90 – θ) – sin2 (90 – θ)] cosec2 (90 – θ) cot2 (90 – θ)?

In the following question, select the odd number from the given alternatives.

The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to

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

The length of the diagonal and the breadth of a rectangle are 26 cm and 10 cm respectively. Find its perimeter (in cm).