document.write( "Question 255078: A child is 1/3 the age of the older sibling. The sum of their ages is 16. How old is the younger child? \n" ); document.write( "
Algebra.Com's Answer #187379 by vksarvepalli(154)![]() ![]() You can put this solution on YOUR website! let the age of the child (younger one) be c\r \n" ); document.write( "\n" ); document.write( "the age of the elder one be s\r \n" ); document.write( "\n" ); document.write( "given c=1/3 s => s=3c\r \n" ); document.write( "\n" ); document.write( "and c+s=16\r \n" ); document.write( "\n" ); document.write( "so c+3c=16 => 4c=16\r \n" ); document.write( "\n" ); document.write( "so c=4 \n" ); document.write( "and s=12\r \n" ); document.write( "\n" ); document.write( "so the younger child is 4 years old \n" ); document.write( " |