document.write( "Question 1186798: Hi
\n" ); document.write( "If speed is increased by 20 percent a person arrives 15 minutes early. What is the initial time taken by the person.
\n" ); document.write( "Thanks \n" ); document.write( "

Algebra.Com's Answer #817772 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
the initial time $\"t\"$
\n" ); document.write( " the initial speed $\"s+\"$ \r
\n" ); document.write( "\n" ); document.write( "if speed is increased by $\"20\"$ percent :
\n" ); document.write( " $\"s%2B0.20s\"$ \r
\n" ); document.write( "\n" ); document.write( "time reduced $\"15\"$ min
\n" ); document.write( " $\"t-15\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"st=%28s%2B0.20s%29%28t-15%29\"$
\n" ); document.write( " $\"st=1.2+s+%28t+-+15%29\"$
\n" ); document.write( " $\"t=1.2t+-+18\"$
\n" ); document.write( " $\"18=1.2t+-+t\"$
\n" ); document.write( " $\"18=0.2t+\"$
\n" ); document.write( " $\"t=18%2F0.2\"$
\n" ); document.write( " $\"t=90min\"$ ->the initial time taken by the person\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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