Answer:
The added number is 50.
Explanation:
To find the added number, we can use the concept of the mean. The mean of a set of numbers is equal to the sum of all the numbers divided by the total count of numbers.
Given that the mean of 10 numbers is 50, we can calculate the sum of these 10 numbers as follows:
Sum = Mean * Count = 50 * 10 = 500
Now, if one more number is added to this set, making it a total of 11 numbers, and the mean is still 50, we can calculate the sum of these 11 numbers as follows:
Sum = Mean * Count = 50 * 11 = 550
To find the added number, we subtract the sum of the original 10 numbers from the sum of all 11 numbers:
Added Number = Sum (11 Numbers) - Sum (10 Numbers) = 550 - 500 = 50
Therefore, the added number is 50.
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