In a survey the average age was found to be 40 years. After correction the age of 100 people is increased from 35 to 50 years each. The new average is 50 years. The total number of people surveyed are?
Correct answer C. 150
Tip: press A, B, C or D to answer, and N for the next question.
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See allThe average salary of employees in a factory is Rs. 2200. All employees are divided in two grades A and B having an average of Rs. 2450 and Rs. 1950 respectively. If grade A has 10 employees then how many employees have grade B?
Correct answer E. none
A team won 5 matches with the average margin of 32 runs. In next two matches they are defeated by an average of 10 runs. The average margin for all the matches will be?
Correct answer A. 20
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The average temperature for first 4 days i.e. Monday Thursday is 37.5C?. While for the last 4 days i.e. Thursday to Sunday is 30C?. If the temperature on Thursday is 30?C then the average for the whole week will be?
Correct answer A. 34.3
The average earning of a firm for first 6 months is Rs. 2100 per month. While for the last two quarters is Rs. 6300 per puarter. The net average income per month will be?
Correct answer D. 2100
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