document.write( "Question 1153252: A car factory produced 20 cars in a day. After the equipment was renovated and another one was brought to the factory, the factory started to produce 70 cars per day. By what percent did the speed of car production increase?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #775450 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
\"%28%2870-20%29%2F20%29100%2Apercent\" \n" ); document.write( "
\n" );