The book

If you read p pages daily, you will read the book for 24 days. If you read ten pages each day more, you would read a book in 16 days.
How many pages have the book?

Correct answer:

n =  480

Step-by-step explanation:


24p=n
(p+10)·16=n


24·p=n
(p+10)·16=n

n-24p = 0
n-16p = 160

Row 2 - Row 1 → Row 2
n-24p = 0
8p = 160


p = 160/8 = 20
n = 0+24p = 0+24 · 20 = 480

n = 480
p = 20

Our linear equations calculator calculates it.



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