document.write( "Question 1147171: 1) A bus is running at the rate of 10km/hr. during the first 60km at 20Km/hr. during second 60km, 30km/hr during the third 60km, 40km/hr. during the 4th 60km and 50km/hr. during the last 5th 60km. what would be the average speed?\r
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document.write( "2) The average IQ of 10 students in probability and statistics course is 114. If the 9 of the students have IQs of 101, 125, 118, 128, 106, 115, 99, 118 & 109, what must the IQ of 10th student.
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Algebra.Com's Answer #768476 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! Bus needs 6 hours for first 60 km \n" ); document.write( "3 hours for the second 60 km \n" ); document.write( "2 hours for the third 60 km \n" ); document.write( "1.5 hours for the fourth 60 km \n" ); document.write( "1.2 hours for the last 60 km \n" ); document.write( "This is 13.7 hours for 300 km or an average speed of 21.90 km/hr\r \n" ); document.write( "\n" ); document.write( "average is total/N \n" ); document.write( "total is 114*10=1140 \n" ); document.write( "The sum of the 9 is 1019 \n" ); document.write( "1140-1019=121 is the IQ of the tenth. \n" ); document.write( " |