document.write( "Question 1043092: When a train travels at 5/8 of its real speed it takes 1 hr 12 minutes more than the actual time if travelled at the real speed.The actual time to be taken to reach the destination is = ? \n" ); document.write( "
Algebra.Com's Answer #658182 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
Use the formula \"d+=+rt\" for the distance travelled by an object with speed r for an interval of time t.\r
\n" ); document.write( "\n" ); document.write( "Let the real speed of the train be r. Suppose the the distance to the destination is d. 5/8 of its real speed is \"%285%2F8%29r\",
\n" ); document.write( "and the time travelled would be \"+d%2F%28%285%2F8%29r%29+=+%288%2F5%29%28d%2Fr%29\". Hence,\r
\n" ); document.write( "\n" ); document.write( "\"+%288%2F5%29%28d%2Fr%29+-+d%2Fr+=+6%2F5\",\r
\n" ); document.write( "\n" ); document.write( "since 1 hour, 20 minutes is \"1%261%2F5+=+6%2F5\" hours.\r
\n" ); document.write( "\n" ); document.write( "===> \"%283%2F5%29%28d%2Fr%29+=+6%2F5\" ===> \"d%2Fr+=+2\", or d = 2r.\r
\n" ); document.write( "\n" ); document.write( "===> The actual time taken to reach the destination is \"t+=+d%2Fr+=+%282r%29%2Fr+=+highlight%282%29\" hours.
\n" ); document.write( "
\n" );