Books in a Library

books in a library
In a library, 30% books are English books and 10% are Hindi books. If the remaining 3600 books are in Malayalam.

What is the total number of books in that library?

Answer:

88 comments:

  1. 100-30-10=60
    3600/60=60
    60*100=6000

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  2. for 60%---3600books
    then40%---?
    on cross multiplication=2400
    hence total no. of books=3600+2400=6000

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  3. 100x3600/60=6000
    a cool and educating blog.

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  4. 6000 Books,
    60% of Books = 3600
    30% of Books = 1800 (Half of above)
    10% of Books = 600 (1/3 of above)

    Total Books 6000

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  5. 3600 = 60%
    2400 = 40%
    Total = 6000 books

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  6. This comment has been removed by the author.

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  7. 6000 books. 30+10=40%......Therefore 60% remains. 3600 is 60% of what? 3600/.60=6000 books.

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  8. This comment has been removed by the author.

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  9. 6000-40% =3600.
    6000-30% =1800.
    6000-10% =600.

    6000.

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  10. This comment has been removed by the author.

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  11. 9000 IS correct you would take the number of books you know 3600 times 100 for 100% then divide that by the % of book we don't know which is 40% to equal 9000

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  12. This comment has been removed by the author.

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  13. 10%-a
    30%=b
    3600=c

    10%+30%+3600=100%
    3600=60%
    60=1%
    6000=100%

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  14. 10% is 600 books
    30% is 1800 books
    60% is 3600 books
    total= 6000 books

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  15. Total Number of books 6000
    Already it mentioned 40% of other books, So remaining
    3600 will be treated as 60%

    then 10% means 600

    English Books 30% means 1800
    Hindi Books 10% means 600
    Malayalam Books 60% means 3600
    Total Number of Books are 1800+600+3600=6000

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  16. Total Number of books 6000
    Already it mentioned 40% of other books, So remaining
    3600 will be treated as 60%

    then 10% means 600

    English Books 30% means 1800
    Hindi Books 10% means 600
    Malayalam Books 60% means 3600
    Total Number of Books are 1800+600+3600=6000

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  17. 3600.00 divided by 60% = 6000 books.

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  18. This comment has been removed by the author.

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  19. let n = total no. of books
    n - .4n = 3600
    .6n = 3600
    n = 3600 / .6
    n = 6000 total no. of books
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  20. 3600 x 40% -= 1440
    1440+3600 = 5040
    so that would mean 5040 books in library

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  21. 3600 x 40% -= 1440
    1440+3600 = 5040
    so that would mean 5040 books in library

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  22. 3600 is 60% of "x"
    3600=.60x
    3600/.60=x
    6000=x

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  23. This comment has been removed by the author.

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  24. 3600 is 60%
    3600/2=1800 is 30%
    remaining percent is 10
    3600/10=600
    1800 english book
    600 hindi book
    3600+1800+600=6000

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  25. let X rep the total the total number of books in the library.
    60/100 of X = 3600 (cross multiplying) you have, 60X = 360000,. X=360000/60 = 6000

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  26. 2400 books are in that library, because the remaining 3600 books are in Malayalam.

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  27. x=.1x+.3X+3600
    x(1-.1-.3)=3600
    X=3600/(1-.1-.3)
    X= 6000

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  28. x*60/100=3600
    x=(3600*100)/60
    x=60000

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  29. 30% Means 3000 books and 10% means 1000 books and remain 3600 the total is 7600 books

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  30. 6000 Books as 60%=3600 1%=60 books

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  31. This comment has been removed by the author.

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  32. This comment has been removed by the author.

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  33. 3600:60% =x:40% then,
    3600:0.60=x:0.40 in decimal
    0.6x=1440
    x=1440/.6
    x=2400

    ans: 2,400 total number of books in that library
    since,the 3600 books are in Malayalam.

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