Question

The students in Class 6 vote to pick a class captain. The choice is Anton, Eva, Kofi or Petra. Anton gets 0.2 of the votes. Eva gets 10% of the votes. Petra gets of the votes. Kofi gets 9 votes. How many students are in class 6?​

Answer 1

There are 15 students in class 6

Explanation:

Let's call the number of students in class 6 "n".

We know that:

Anton gets 0.2 * n votes

Eva gets 0.1 * n votes

Petra gets (1 - 0.2 - 0.1) * n votes

Kofi gets 9 votes

The total number of votes is n, so we can write:

n = 0.2 * n + 0.1 * n + (1 - 0.2 - 0.1) * n + 9

Simplifying this equation:

0.6 * n = 9

So:

n = 9 / 0.6

n = 15