SOLUTION: 8 students can solve 20 questions in 10 minutes. How many students will be needed to solve 30 problems in 5 minutes

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Question 1070545: 8 students can solve 20 questions in 10 minutes. How many students will be needed to solve 30 problems in 5 minutes
Found 2 solutions by DENNIS DON, ikleyn:
Answer by DENNIS DON(8)   (Show Source): You can put this solution on YOUR website!
students : questions: time
8. : 20. : 10
x. : 30. : 5
Answer by ikleyn(52754)   (Show Source): You can put this solution on YOUR website!
.
The rate of each student (assuming the rate is constant for all students) is  =  =  of the problem per minute.


Therefore, the number of students under the question is

n =  =  = 6*4 = 24.


Answer. 24 students.

For many other similar solved problems see the lesson
    - Rate of work problems
in this site.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lesson is the part of this textbook under the topic "Rate of work and joint work problems" of the section "Word problems".



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