Mathematics
Grade6
Easy

Question

Rona reads a book for 1 fraction numerator 1 over denominator 4 end fraction hours every day. She reads the entire book in 6 days. Find the number of hours in all that she required to read the book.

  1. 8 fraction numerator 1 over denominator 2 end fraction    
  2. 7 fraction numerator 1 over denominator 2 end fraction    
  3. 6 fraction numerator 1 over denominator 2 end fraction    
  4. 5 fraction numerator 1 over denominator 2 end fraction    

hintHint:

To find the total Time for all books , we multiply the time taken for each book and total number of books.

The correct answer is: 7 fraction numerator 1 over denominator 2 end fraction


    Time taken for each book = 1 1 fourth hours ; total number of books = 6
    Hours in all required by Rona to read book = 1 fraction numerator 1 over denominator 4 end fraction cross times 6
    Using Improper fraction = fraction numerator open parentheses text Whole number × Denominator end text close parentheses text  + Numerator end text over denominator text Denominator end text end fraction
    equals fraction numerator 4 cross times 1 plus 1 over denominator 4 end fraction cross times 6
    equals fraction numerator 5 over denominator 4 end fraction cross times 6
    equals fraction numerator 30 over denominator 4 end fraction equals fraction numerator 30 divided by 2 over denominator 4 divided by 2 end fraction equals fraction numerator 15 over denominator 2 end fraction equals 7 fraction numerator 1 over denominator 2 end fraction
    Therefore, 7 1 half hours is the time taken by Rona to read all 6 books.

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