document.write( "Question 759506: In an examination the average mark for the first five students was 86 and of the first six 85. What was the sixth persons mark gained??? \n" ); document.write( "

Algebra.Com's Answer #462081 by Cromlix(4381) $\"\"$ $\"About$

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average mark for first five students = 86
\n" ); document.write( "Therefore 5 * 86 = 430 marks in total.
\n" ); document.write( "Average mark for first six students = 85
\n" ); document.write( "Therefore 6 * 85 = 510 marks in total
\n" ); document.write( "510 - 430 = 80 this what the sixth person gained.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "

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