Quantitative Aptitude - Arithmetic Ability Questions

A man travels 404 kilometres in partly by rail and steamer. He spends 10 hours more time on steamer. If the speed of the steamer is 30 km/hr and the velocity of rail is 50 km/hr, how much distance does he cover by steamer?

What is the measure of an interior angle of a regular decagon?

cot2A + cos2A is equal to

What is the measure of central angle of the arc whose length is 11 cm and radius of the circle is 14 cm?

x, y and z are prime numbers and x + y + z = 38. What is the maximum value of x?

If on a Sale there is 40% discount on the marked price of Rs 1000, but the sale is done at Rs 510 only then what additional discount (in %) did the customer get?

After selling 5% of a quantity of sugar, 5 Kgs of sugar remains . Find the total quantity of sugar?

The mean of 21 observations (all different) is 40. If each observation greater than the median is increased by 21, then the mean of observations will become: