document.write( "Question 774211: there are 16 green,20 red and 24 yellow balls in a basket. If we pick a ball at random what is the probability that
\n" );
document.write( "1.the ball is green
\n" );
document.write( "2.the ball is not green and red. \n" );
document.write( "
Algebra.Com's Answer #472104 by ramkikk66(644)![]() ![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "Probability = no of favourable outcomes / no. of total possible outcomes. --(1)\r\n" ); document.write( "Total number of balls = 16+20+24 = 60. Out of these, one ball is picked.\r\n" ); document.write( "So total possible outcomes = 60.\r\n" ); document.write( "1) Case 1. Ball is green. Here \"favourable outcome\" is getting a green ball.\r\n" ); document.write( "No. of possible favourable outcomes = 16 (since there are 16 green balls)\r\n" ); document.write( "So probability of getting a green ball\r\n" ); document.write( "= 16/60 (from eqn(1))\r\n" ); document.write( "= 4/15\r\n" ); document.write( "2) Case 2. Ball is not green or red i.e. the \"favourable outcome\" is\r\n" ); document.write( "getting a yellow ball (one that is not green or red)\r\n" ); document.write( "No. of possible favourable outcomes = 24(since there are 24 yellow balls)\r\n" ); document.write( "So probability of getting a yellow ball\r\n" ); document.write( "= 24/60 (from eqn(1))\r\n" ); document.write( "= 2/5\r\n" ); document.write( "Hope you got it:)\r\n" ); document.write( "\n" ); document.write( " |