SSC Government Jobs Exams Numerical Ability Averages

The average salary per head of all workers of an institution is Rs. 60. The average salary per head of 12 officers is Rs. 400. The average salary per head of the rest is Rs. 56. Then the total number of workers in the institution is?

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SSC Other Question

The average of the test scores of a class of ‘m’ students is 70 and that of ‘n’ students is 91. When the scores of both the classes are combined, the average is 80. What is n/m? A cricketer played 80 innings and scored an average of 99 runs. His score is in the last inning is zero run. To have an average of 100 at the end, his score in the last innings should have been