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Question 10
The average of 10 numbers is X and one of the number is 38. If 38 is replaced with 19, then what will be the new average?
Solution
Average of 10 numbers = $$x$$
=> Sum of numbers = $$10x$$
If 38 is replaced with 19, then new average = $$\frac{10x-38+19}{10}$$
= $$\frac{10x-19}{10}$$
= $$x - (\frac{19}{10})$$
=> Ans - (C)
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