SOLUTION: Hello , could you please help me with this question.
Thank you , my name is John
Email j.callaghan@xtra.co.nz
In his first five maths tests this year John had an average scor
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-> SOLUTION: Hello , could you please help me with this question.
Thank you , my name is John
Email j.callaghan@xtra.co.nz
In his first five maths tests this year John had an average scor
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Question 749364: Hello , could you please help me with this question.
Thank you , my name is John
Email j.callaghan@xtra.co.nz
In his first five maths tests this year John had an average score of 8. In his next two tests he
scored 7 and 5 and after his eighth test his average was 7.5. What was his score in the eighth test?
Q4. Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Hi John
If the first 5 tests gave an average of 8
then the totals for the 5 tests were 40 (5 x 8)
If his next two tests scored 7 and 5 then his
total now becomes 52 (40 + 7 + 5).
His eighth test brought his average to 7.5
so his total of marks was 60 (8 x 7.5)
Taking 52 away from 60 = 8 his score for the eighth test.
Hope this helps mate.
:-)
