Word Problem

toponlinetool

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Jan 7, 2020
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Andy read 4/5th of a story book which has 100 pages. How many pages of the book is not yet read by Andy?
Please help
 
Ok forget Andy. Imagine you are reading the book. Its got 100 pages. If you've read 4/5 of the pages, what fraction of the pages haven't you read?
How many pages is that?
 
It may help to simplify:
Let's say the book has 5 pages. How many left? How did you get the answer?
What if it has 10 pages? And 100?
 
4/5 means 4 out of 5. Imagine you read 4 out of even 5 pages, so you do you not read 1 out of every 5 pages. Think of tearing out all the pages and putting a paper clip on every 5 pages. How many groups of 5 will you have if the book has 100 pages? Since you do not read 1 page in each of these groups how many pages did you not read?
 
Ok forget Andy. Imagine you are reading the book. Its got 100 pages. If you've read 4/5 of the pages, what fraction of the pages haven't you read?
How many pages is that?
Means you have to say that 4/5 of 100, which gives 80. Means 80 out of 100 pages have been read.. & 20 pages have not been read.
 
It may help to simplify:
Let's say the book has 5 pages. How many left? How did you get the answer?
What if it has 10 pages? And 100?
Thanks.. i got what you want to say like..for 5 pages 1 page is unread, for 10 pages 2 pages are unread likewise if a book has 100 pages then 20 pages are unread..
 
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