SOLUTION: 1.1 To obtain Grade A, Gumede must achieve an average of at least 75 in six tests. If his average mark for the first five tests is 73, what is the lowest mark he can get in his tes

Question 1115308: 1.1 To obtain Grade A, Gumede must achieve an average of at least 75 in six tests. If his average mark for the first five tests is 73, what is the lowest mark he can get in his test and still obtain Grade A?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

So then,

Substituting from above,

Work that out for the answer.

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