7. 16% pages of a book are read on Monday, 32% pages are read on Tuesday, 325
pages of the book are left to be read. How many pages of the book are read?
the answer is 300 but how pls solve my question
Answers
Let the total number of pages in the book be x .
Then ,
No. of pages read on Monday = 30% of x
No. of pages read on Tuesday = 50% of x
No. of pages left to be read = 72
Now,
=> Total no. of pages in the book = No. of pages read on Monday + No. of pages read on Tuesday + No. of pages lest to be read .
=> x = (30% of x) + (50% of x) + 72
=> x = (30/100)•x + (50/100)•x + 72
=> x = (3/10)•x + (5/10)•x + 72
=> x = 3x/10 + 5x/10 + 72
=> x = (3x + 5x)/10 + 72
=> x = 8x/10 + 72
=> x - 8x/10 = 72
=> (10x - 8x)/10 = 72
=> 2x/10 = 72
=> x/5 = 72
=> x = 72•5
=> x = 360
Hence,
The total number of pages in the book is 360 .
There are 625 pages of the book are to be read in total.
Step-by-step explanation:
Since we have given that
Percentage of pages read on Monday = 16%
Percentage of pages read on Tuesday = 32%
So, Remaining left percentage of pages is given by
Let the total number of pages are left to be read be 'x'.
According to question, we get that
Hence, there are 625 pages of the book are to be read in total.
# learn more:
16% pages of a book are read on Monday, 32% pages are read on Tuesday, 325
pages of the book are left to be read. How many pages of the book are read?
The answer is 300 but how pls solve my question
https://brainly.in/question/15026141