Quantitative Aptitude - Arithmetic Ability Questions

Which of the following is not a quadratic equation?

If cosec 45° - sin 30° = x, then x is

The area of a right angled triangle ABC, right angled at B, is 46 sq units. A median is drawn from A to BC which intersects at D. Find the area (in sq. units)of triangle ABD.

Find the odd word/letters/number from the given alternatives.

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?

The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?

Shrenik switched on a bulb at 2 : 39 : 40 hours and switched it off on the same day at 12 : 30 : 34 hours. For how long was the bulb in switched-on mode?

The volume of a right circular cone, whose radius of the base is same as one-third of its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is :