document.write( "Question 1193952: an optical shop sells 10 types of plastic frames, 12 types of rimless frames and 9 types of metal frames. each pair of glasses can be matched with normal lens, non reflective lens, or anti scratching, non reflective lens. Molly is going to buy a pair of glasses from the shop how many choices does she have? \n" ); document.write( "
Algebra.Com's Answer #826050 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The other tutor didn't read the problem.... \n" ); document.write( "When selecting a pair of glasses, you only choose one frame -- you don't choose one plastic frame, one rimless frame, and one metal frame. \n" ); document.write( "Also, with the punctuation used in the statement of the problem, there are only three types of lenses instead of four: \n" ); document.write( "normal \n" ); document.write( "non-reflective \n" ); document.write( "anti-scratching, non-reflective \n" ); document.write( "So there are 10+12+9 = 31 frames to choose from, and 3 types of lenses to choose from. \n" ); document.write( "ANSWER: 31*3 = 93 different possible choices \n" ); document.write( "-------------------------------------------------------------- \n" ); document.write( "Thanks to tutor @ikleyn for pointing out my silly computational error.... \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |