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)\"\" \"About 
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\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

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\n" ); document.write( "Thanks to tutor @ikleyn for pointing out my silly computational error....
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