Word problem

Question

Student council published the results of the survey about new mascots. Jesse knows that 72% of students chose a mascot other than a tiger. How many students chose a Viking as their new mascots.

Mascots.            #of students

Eagle.                             11

Polar bear.                      6

Tiger.                              14

Viking.                               ?

Answer 1

The total number of students participating in the survey is 

 

11+6+14+? = 31+?

 

Number of students who did not choose the viking

 

11+6+14 = 31

 

31/(31+?) = .72  (72% of the students did not choose the viking)

 

31/.72 = 31+?

43 = 31+?

? = 12

 

12 Students chose Viking as their mascot.