Quantitative Aptitude - Arithmetic Ability Questions

A train is running at a speed of 116 kms/hr. The distance covered by the train in meters in 18 secs is

Of the 5 numbers whose average is 76, the first is 3/7 times the sum of other 4. The first number is

Of the 5 subjects, the average marks of Rakesh in first 3 Subjects was 79 and the average marks in the last 3 subjects was 86. If his marks in the third subject was 80, then what was his average marks in all the 5 subjects?

The standard deviation of the set {10, 10, 10, 10, 10} is

A shopkeeper, sold walnuts at the rate Rs 1,190 a kg and bears a loss of 10%. Now if he decides to sell it at Rs 1,249.5 per kg, what will be the result?

A man can row his boat at a speed of speed of 4 kmph and he finds that the time taken rowing upstream is double to that taken downstream. Find the speed of the stream (in kmph).

If  tan2θ + cot2θ = 2, then what is the value of 2sec θ cosec θ?

If the speed of a boat in still water is 20 km/hr and the speed of the current is 5 km/hr, then the time taken by the boat to travel 100 km with the current is