document.write( "Question 406350: out of three tests what is the lowest grade you can get to have an average of 87? \n" ); document.write( "
Algebra.Com's Answer #286829 by richard1234(7193)\"\" \"About 
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I think you want to find the lowest possible score you can get on one of three tests and still average 87...?\r
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\n" ); document.write( "\n" ); document.write( "If this is the case, I'll restrict the possible test scores to [0, 100]. The lowest possible score can be obtained when the other two scores are 100. Hence,\r
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\n" ); document.write( "\n" ); document.write( "(100 + 100 + x)/3 = 87 --> 200 + x = 261 --> x = 61. Therefore, it is possible to get a 61 and still average 87.
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