SOLUTION: Ali scored 74, 82 and 60 for three of his maths tests. What is the lowest mark he must score for his fourth test if he aims to achieve an average of at least 78 for the four tests?

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Question 991558: Ali scored 74, 82 and 60 for three of his maths tests. What is the lowest mark he must score for his fourth test if he aims to achieve an average of at least 78 for the four tests?



Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%2874%2B82%2B60%2BT%29%2F4%3E=78
216%2BT%3E=312
T%3E=96
At least a 96.