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10th Class Mathematics Solved Paper - Mathematics 2017 Outside Delhi Set-I

  • question_answer
    The probability of selecting a rotten apple randomly from a heap of 900 apples is 0 ? 18. What is the number of rotten apples in the heap?

    Answer:

    Total apples \[=900\]
       \[P(E)=0.18\]
                    \[\frac{No.\,\,of\,\,rotten\,\,apples}{Total\,\,no.\,\,of\,\,apples}=0.18\]                        
                    \[\frac{No.\,\,of\,\,rotten\,\,apples}{900}=0.18\]
         No. of rotten apples \[=900\times 0.18\]
               
              \[=162\]


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