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:

Question: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:

1.50

2.120

3.150

4.200


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