Answer: She can read 17 and a half page in 25 minutes.
Step-by-step explanation:
We assume that the number of pages is directly proportional to the number of minutes taken to read them.
Given : Adrianna can read 7 pages in 10 minutes.
Rate of reading=[tex]\dfrac{\text{Number of pages}}{\text{Time}}=\dfrac{7}{10}[/tex] (1)
Let x denotes the number of pages she read in 25 minutes.
Rate of reading =[tex]\dfrac{x}{25}[/tex] (2)
From (1) and (2) , we have
[tex]\dfrac{x}{25}=\dfrac{7}{10}[/tex] [in direct variation ration remains constant.]
[tex]x=\dfrac{7\times25}{10}=\dfrac{175}{10}=17\dfrac{1}{2}[/tex]
Hence, She can read 17 and a half page in 25 minutes.
