Quantitative Aptitude - Arithmetic Ability Questions

Average of 14 numbers is 32. If the average of last 5 numbers is 26, then what is the average of the remaining numbers?

The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:

The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded half yearly, then what is the difference (in Rs) between compound and simple interest for 1st year?

In a ∆ABC, BC is extended upto D, ∡ACD =120°, ∡B = 1/2 A. Then ∡A is

Point P is the midpoint of segment AB. Co-ordinates of P are (5,-4) and A are (7,0). What will be the co-ordinates of point B?

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

What is the value of tanπ4+A×tan3π4+A ?

Abhinav is 2 times as good a workman as Balwant and therefore is able to finish a job in 36 days less than Balwant. Working together, they can do it in