SOLUTION: 2.2 During the weekend of study the teacher gives the class several difficult problems. One of the problems asked the learners to list a set of 5 values in which the mean, mode and

Algebra ->  Human-and-algebraic-language -> SOLUTION: 2.2 During the weekend of study the teacher gives the class several difficult problems. One of the problems asked the learners to list a set of 5 values in which the mean, mode and      Log On


   

Question 888286: 2.2 During the weekend of study the teacher gives the class several difficult problems. One of the problems asked the learners to list a set of 5 values in which the mean, mode and median were the same number. The following were given as a guideline:
• The lowest number is 5
• The range is 7
• Only the number 9 is repeated
2.2.1 List the correct numbers in ascending order.
**NOTE: I completed 2.2.1 ... I need help with 2.2.2**
2.2.2 Only 40% of the class attempted the question. Of these learners who attempted the question, 3 learners got the question correct. How many learners were in the class?
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
let x be the number of learners, then
.40x > 3
x > 3 /.40
x > 7.5
therefore, the number of learners must be greater than 7.5