Quantitative Aptitude - Arithmetic Ability Questions

If the perimeter of a semicircle is 108 cm, then find its area (in cm²).

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 18% per annum is Rs 81. The sum is ____.

If secθ = cosecq with 0° < θ , q < 90°, then the value of sin (θ + q) is

A man covered a certain distance by a train at the speed of 40 km/hr and covers the same distance back by walking at the speed of 8 km/hr. Ifthe whole journey took 12 hours, then what is the one side distance (in km)?

If two marbles are picked at random, what is the probability that either both are red or both are green?

Find the least number which when divided by 20, 25, 35 and 40 leaves remainder 14, 19, 29 and 34 respectively?

What is the average of all numbers between 8 and 74 which are divisible by 7?

The radius of base of a solid cylinder is 7 cm and its height is 21 cm. It is melted and converted into small bullets. Each bullet is of same size. Each bullet consisted of two parts viz. a cylinder and a hemisphere on one of its base. The total height of bullet is 3.5 cm and radius of base is 2.1 cm. Approximately how many complete bullets can be obtained?