<PRE><B>Question 813637</B>
(68 + 65 + 75 + 78 + f)/6 = 70
(286 + f)/6 = 70
286 + f = 70*6
286 + f = 420
f = 134
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(68 + 65 + 75 + 78 + f)/6 = 79
(286 + f)/6 = 79
286 + f = 79*6
286 + f = 474
f = 188
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if the final counts as two tests, I assume that max score on the final is 200 (not 100).
if that&#39;s true, then:
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Answer:
134 &lt;= f &lt;= 188
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