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Averages-Aptitude-Questions

A student finds average of 10, 2 digits numbers. If digits of one of numbers interchanged, average increases by 3.6. The difference between digits of 2 digits number is :


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A librarian purchased 50 storybooks for his library. But he saw that he could get 14 books more by spending Rs. 76 more but per book average becomes Rs. 1 less. The average price (in Rs.) of each book he bought, was :

A student finds average of 10, 2 digits numbers. If digits of one of numbers interchanged, average increases by 3.6. The difference between digits of 2 digits number is :

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

A student finds the average of 10

2 digits numbers. If the digits of one of the numbers interchanged

the average increases by 3.6. The difference between the digits of the 2 digits number is :

Averages Aptitude Questions

Arithmetic-Aptitude