Respuesta :
false... even if you got 100 on the next test, you would only have an 84 average
Hope this helped!!! :) (comment if you don't understand)
The marks that have to be scored in 6th test to make the average 85 is 105 .
What is Average ?
Average of a data set is the ratio of sum of all the data to the number of data in the set.
It is given that the average score = 81
Total tests up till now = 5
Total tests overall = 6
New Average = 85
Let the sum of the score for 5 tests is x
Then by the formula of average
x / 5 = 81
x = 405
Now let the marks scored in the 6th test is y
then ( 405 +y) / 6 = 85
405 + y = 510
y = 105
Therefore , the marks that have to be scored in 6th test to make the average 85 is 105 .
To know more about Average
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