Question

On a 15 question test, a student got 9 correct answers, What percentaje of the problems did the student answer correctly?

Answer 1

Explicación paso a paso:

15 = 100%

9 = ?

9 = 60%

9×100=900

900÷15

60

Answer 2

Respuesta:

60%

Explicación paso a paso:

Hi! We can solve this problem with a simple "rule of three". We need to take into account what we know and what we want to know:

- we know that the 100% are the 15 questions on that test

- we want to know which percent are the 9 correct answers, so:

15 questions -------------------- 100% -->this is what we know

9 questions correct ------------ x =? --> this is what we want to know

x = 9questions correct . 100% / 15 questions

We solve this, and we find out that:

x = 60% --> this is the answer!