document.write( "Question 1112387: a piece of string of length 85 centimeter is divided into three pieces in the ratio 2:3:5 calculate the lengthof the length of the shorteset and longest .
\n" ); document.write( "An alloy consist od steel silver and copper in the ratio of 6:5:9 . If the smallest masss is 160 grams , calculate the mass of the copper i the alloy \n" ); document.write( "
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The length is 85 and the ratio is 2:3:5. Now, 2+3+5 = 10, which means that in every group of 10 there are 2 of one, 3 of another, and 5 of yet another.
\n" ); document.write( "How many groups of 10 go into 85? Well, 85/10 = 8.5. Aha! We've got our answer:
\n" ); document.write( "(2 x 8.5) + (3 x 8.5) + (5 x 8.5) = 85 let's see if this is true:
\n" ); document.write( "17 + 25.5 + 42.5 = 85 Correct
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\n" ); document.write( "An alloy consist of steel silver and copper in the ratio of 6:5:9 . the smallest mass (silver) is 160 grams. So 5 = 160
\n" ); document.write( "IF:
\n" ); document.write( "5 = 160
\n" ); document.write( "then:
\n" ); document.write( "(160*6)/5 = 192
\n" ); document.write( "(160*9)/5 = 2886 x 160)/5 = 288
\n" ); document.write( "mass of silver: 160
\n" ); document.write( "mass of steel: 192
\n" ); document.write( "mass of copper: 288
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\n" ); document.write( "The mass of copper in the alloy is 289
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