The number of zeros in the product 5 x 10 x 25 x 40 x 50 x 55 x 65 x 125 x 80 is :

 

  • Option 1)

     

    12

     

  • Option 2)

     

    10

     

  • Option 3)

     

    13

     

  • Option 4)

     

    9

     

  • Option 5)

     

    8

     

Answers (1)

The number of zeros in the product 5 x 10 x 25 x 40 x 50 x 55 x 65 x 125 x 80 is :

5^{1+1+2+1+2+1+1+3+1}*2^{1+3+1+4}

\Rightarrow 513*29= 9 zeros

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