The average income of 74 persons is Rs.5,200 and that of a manager is Rs.6,000 then, the average income of the whole group is (consider up to two decimals):
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. Rs. 5,210.66.
We know that,
Average = Sum of observations/Number of observations
According to the given question,
Total income of 74 persons = 74 × 5200 = 384,800
Income of 75 persons including manager = 384,800 + 6,000 = 390,800
Average income of 75 persons = 390,800/75 = 5,210.66