Question 1152358
.
<pre>

I will explain you how to answer the <U>first question</U>.


The problem says about "every 7 students".


According to the condition, you can divide the entire body of 35 students in 5 group, each comprising of 7 students,

in a way that 6 out of 7 students in each group turn in their field trip form.



It means that the number of students turned in their trip form is 6 multiplied by the number of groups, which is 5.


So, the <U>ANSWER</U> to this question is  6*5 = <U>30  students</U>.
</pre>


Solved, answered and explained.