Kynlielyn Kynlielyn

19-03-2018
Mathematics

contestada

Alice's book has 200 pages. Alice has read 75% of the pages in her book. Nina has read the same number of pages but only 50% of the pages in her book. How many pages are in Nina's book?

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sqdancefan sqdancefan

19-03-2018

Alice has read 0.75*200 = 150 pages. The number of pages in Nina's book is
.. 150/0.50 = 300

_____
That is, 0.50*300 = 150, the number of pages Nina has read.

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