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  1. ...: (1) 1 person pays it all (can't get 8.41 in nine coins ) (2) 29 people pay 0.29 each (4 pennies, 5 nickels each) (3) 841 people...

    2 Answers · Science & Mathematics · 28/10/2010

  2. Hi Let x be the number of dimes, then x*10 +(x+3)*5 +(x+3+2)*25 = 980 cent 40x = 840 cent x = 21 There were 21 dimes, 24 nickels, 26 quarters Regards

    1 Answers · Science & Mathematics · 11/10/2010

  3. You should expect to eliminate 50% of the coins each tip . (if a tip provides an equal chance of a dot or not which it appears...

    1 Answers · Science & Mathematics · 14/08/2009

  4. ...pick any two of this three and weigh them against each other. the scale will either tip or if they balance, the other coin from that group is lighter

    6 Answers · Science & Mathematics · 21/10/2008

  5. ...area distribution among coins , the physics (which regions of the coin it has to land on in order to tip over/stay), maybe eve the physics, air resistance, the weight distribution of the coin ...

    4 Answers · Science & Mathematics · 01/01/2011

  6. ...able to figure out how many fit the given conditions. Some tips . - Each coin toss has exactly 2 possibilities. The Fundamental...

    3 Answers · Science & Mathematics · 27/09/2010

  7. ...x+ x + y = 10 (number of soins) .05x +.1x + .25y = 1.45 (value of coins ) 2x +y = 10 (1st equation rewritten) .15x + .25y = 1.45 (2nd equation...

    2 Answers · Science & Mathematics · 08/04/2009

  8. Divide the coins into threes. Weigh two sets of three coins . If...not, then you know which set contains the fake. From the set of three coins containing the fake, weigh any two. Just as above, if the weights...

    4 Answers · Science & Mathematics · 04/01/2013

  9. Assuming the coins have a symmetrical cross-section, and that the dot you put on one side does not change...quot;dot down" are both equally likely to happen. Now drop that one coin 100 times, and note the number of times you get "dot up...

    1 Answers · Science & Mathematics · 20/08/2009

  10. The number of ways of taking 2 objects from a group of 5 is (5!)/((2!)*((5-2)!) = 120/(2*6) = 10

    3 Answers · Science & Mathematics · 09/07/2009

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