Question

In a class, 1 out of every 6 students get failed. If there are 42 students in the class, how many are passed?

Answer 1

no.of student's are 42.
if 1 fails out of 6 student's,
then in 42 student's 7 will fails.
so,
Number of students passed= 42-7=35
Therefore 35 student's are passed.

Answer 2

there are42 students in the class
1 out of every 6 students get failed
$42 \div 6 = 7 \\ \: in \: every \: 6 \: students \: 1 \: failed \: and \: 5 \: pased \: \\ 5 \times 7 = 35$
35 students passed