document.write( "Question 15704: Hi,\r
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document.write( "I'm trying to solve this problem: If a 3-digit number (000 to 999) is chosen at random, find the probability that exactly one digit will be less than 2.
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document.write( "I got to the point of (1/10)^2 * 2/10 but I'm not sure or am I answering another problem. Please help asap. \n" );
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Algebra.Com's Answer #325974 by biplavmehta(3)![]() ![]() ![]() You can put this solution on YOUR website! let 1st digit is less then 2 and remaining more then equal to 2. then we have 2*8*8 favorable no. of cases. \n" ); document.write( "similarly for 2nd and 3rd digit. \n" ); document.write( "so the total no. of favorable cases = 2*8*8 + 8*2*8 + 8*8*2 = 384. \n" ); document.write( "total no. of cases= 10*10*10=1000 \n" ); document.write( "ans= 384/1000. \n" ); document.write( " |