Jhon Regand

Jhon Regand is reading a 435-page novel. If he reads the same number of pages per day and the number is a prime number greater than 10, how many pages per day will he read?

Correct result:

s =  29 p/d

Solution:

$$\begin{gathered} 435=3\times 5\times 29 \\ s>10,435\mathrm{/}s\in N \\ s=29=29\text{ p/d} \end{gathered}$$

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