drishti read 2/3 of a book and found that the read number of pages is 90 more than the number of unread pages.find the total number of pages in the book.
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Answer:
2x/3=90+x/3
x=270 pages
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Step-by-step explanation:
Answered by
12
Step-by-step explanation:
Given:-
drishti read 2/3 of a book and found that the read number of pages is 90 more than the number of unread pages.
To find:-
find the total number of pages in the book.
Solution:-
Let the total no. of pages in a book be X
Read pages by Dristhti =2/3 of a book
=>(2/3)×X
=>2X/3 pages
Remaining pages =X-2X/3
=>(3X-2X)/3
=>X/3
But given that
the read number of pages is 90 more than the number of unread pages
=>2X/3=X/3+90
= 2X/3-X/3=90
=>(2X-X)/3=90
=>X/3=90
=>X=3×90
=>X=270
Solution:-
Total number of pages in a book =270
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