Question

1. There are 35 students in a class and 80% of these students passed their English test. What number of these students passed their test?

Answer 1

35 students ----> 100%

x students ------> 80%

$\begin{gathered} x\times100=35\times80 \\ 100x=2800 \\ \frac{100x}{100}=\frac{2800}{100} \\ x=28 \end{gathered}$

answer:

28 students passed their test