document.write( "Question 975572: A girl have 5 sister having sum of there age is 90, and diffrence of there age is 3. Find out the age of eldest sister.? \n" ); document.write( "
Algebra.Com's Answer #597348 by ankor@dixie-net.com(22740)\"\" \"About 
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A girl have 5 sisters having sum of there age is 90, and difference of there age is 3. Find out the age of eldest sister.?
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\n" ); document.write( "Assume there is one sister plus one set of twins and one set of triplets
\n" ); document.write( "g = girl's age, who is the oldest
\n" ); document.write( "(g-2) = the triplets age
\n" ); document.write( "(g-3) = the twin's age
\n" ); document.write( "the difference between the oldest and the youngest will be 3
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\n" ); document.write( "g + 3(g-2) + 2(g-3) = 90
\n" ); document.write( "g + 3g - 6 + 2g - 6 = 90
\n" ); document.write( "6g - 12 = 90
\n" ); document.write( "6g = 90 + 12
\n" ); document.write( "g = 102/6
\n" ); document.write( "g = 17 yrs is the age of the oldest
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\n" ); document.write( "See if that works, the triplets will 15, the twins will be 14
\n" ); document.write( "17 + 3(15) + 2(14) =
\n" ); document.write( "17 + 45 + 28 = 90
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\n" ); document.write( "I have to admit I had to try several combinations of twins and triplets to get an integer solution to this
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