Question

6.5.PS-26

Answer 1

Number of hockey cards in Nick's album = 700

Number of hockey cards in each page of the album = 7

Number of pages in Nick's album :

$= \tt \frac{700}{7}$

$= \tt100$

▪︎Thus, the number of pages in Nick's album = 100

Percentage of album that is empty = 72%

Number of pages in the album that is empty :

$= \tt 72\% \: \: of \: \: 100$

$=\tt \frac{72}{100} \times 100$

$= \tt \frac{72 \times100}{100}$

$=\tt \frac{7200}{100}$

$\color{plum}= \tt72 \: pages$

▪︎Thus, the number of empty pages in the album = 72

Number of pages in the album that are filled :

$=\tt 100 - 72$

$\color{plum} = \tt28 \: pages$

▪︎Therefore :

Number of pages filled with hockey cards = 28