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CBSE Class 11-science Answered

In a game, a person wins if he gets the sum greater than 20 in four throws of a die. In three throws he got numbers 6, 5, 4. What should be his fourth throw, so that he wins the game?
Asked by Topperlearning User | 30 Apr, 2014, 01:20: PM
answered-by-expert Expert Answer
Numbers obtained in three throws are 6, 5 and 4.
Let the number obtained in fourth throw be x.
Now, Sum > 20
    6 + 5 + 4 + x > 20
    15 + x > 20
    x > 20 – 15
    x > 5
  He must get a 6 in the fourth throw to win the game.
Answered by | 30 Apr, 2014, 03:20: PM

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