Question

amer read 40 pages of a 160- page book.what percentage of the book did he read ?

Answer 1

40/160*100%

1/4*100%

100/4%

25%

So he read 20%

Answer 2

$\sf\dfrac{40}{160} \times 100$

$\sf\dfrac{1}{4} \times 100$

$\sf = 25\%$