Average Practice Test 1

Question : 11 of 40

Marks: +1, -0

While finding the average of 10 given numbers, a student, by mistake, wrote 64 in place of the number 46 and got his correct averages 50. The correct average of the given numbers is:

48.2
48.3
46.1
49.3

Validate

Solution:

Difference between correct number and incorrect number

64 - 46 = 18

n = 10

So,

{x+18}/10=50

x+18=500

x=482

Correct average of the given number

=x/n=482/10=48.2

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