Question

Tehira has read 110 pages of a 290-page book. She reads 20 pages each day. How many days will it take to finish?

Answer 1

Hint: As we know the book is of 290 pages and to find the total number of days to read the whole book, we can find out by considering the given data by applying the formula given with respect to the length of the book and with what speed she reads the book i.e.:
\[Time = \dfrac{{bookLength}}{{readingSpeed}}\]

Formula used:
\[Time = \dfrac{{bookLength}}{{readingSpeed}}\]
Time is Time taken to read the book
Book length is the total number of pages of the book.
Reading speed is the total number of pages she reads each day.

Complete step-by-step solution:
As per the given data, Tehira has read 110 pages of a 290-page book and she reads 20 pages each day.
As the book consists of 290 pages, and out of that 110 pages have been read, so the remaining pages in the book are
\[290 - 110 = 180\]pages
Therefore, we need to find out how many days she will take to read the remaining 180 pages of the book to finish reading.
And also, in the question it is mentioned that she reads 20 pages per day.
\[Time = \dfrac{{bookLength}}{{readingSpeed}}\]
\[Time = \dfrac{{bl}}{{rs}}\]
Substitute the value of book length i.e., remaining pages of the book to read and speed taken to read the book each day.
\[Time = \dfrac{{180}}{{20}}\]
\[Time = 9days\]
Therefore, time taken to read the 180 pages of the book is 9 days.
Now let us find for the total number of pages of the book i.e., for 290 pages book how many days does she take to read it.
\[Time = \dfrac{{bookLength}}{{readingSpeed}}\]
Hence,
\[Time = \dfrac{{bl}}{{rs}}\]
Now let us substitute the value of book length i.e., total number of pages of the book and speed taken to read the book each day.
\[Time = \dfrac{{290}}{{20}}\]
\[Time = 14.5days\]
Hence, time taken to read the whole book is 14.5 days.

Therefore, Tehira takes 14.5 days to finish reading the book.

Note: To find the time taken we can find out by considering the given data i.e., for 290 pages book she reads 20 pages per day and has read 110 pages.
\[Time = \dfrac{{bookLength}}{{readingSpeed}}\]
Hence by this we can find the days she takes to read the whole book.