Question
The mean age of 30 students was calculated as 15 years.
However, it was later discovered that one student's age was mistakenly entered as 15 years instead of 9 years. What is the accurate average age of the students?Solution
Sum of ages of 30 students = 30 x 15 = 450 years Actual sum of ages of 30 students = (450 - 15 + 9) = 444 years Actual average of 30 students = (444/30) = 14.8 years
Which of the following cities has been declared as India's first ‘Water Plus’ city?
What percentage of priority sector lending did UCBs achieve in FY23, surpassing the RBI's target?
Where are the headquarters of ReNew Energy Global Plc ?Â
Which team won 2021 Indian Premier League?
Which butterfly species was recently sighted and documented for the first time in Himachal Pradesh's Chamba district?
Who has been selected as the new Chief Technologist of NASA?
Indian Railways has issued the Letter of Award (LoA) for Manufacturing and Maintenance of 9000 HP Electric Freight Locomotives to ____.
Knight Frank has come up with the Wealth Report 2022. As per the report, India is ranked 3rd in terms of most number of billionaires’ population g...
What is the official launch date for Maharashtra's geo-tagged 13-digit Infra ID system?
Which bank have been adjudged 'Most Innovative Best Practice' for financial inclusion at the CII Digital Transformation Award 2021?
Relevant for Exams:
