Question

You notice in a test you ge 1 out of the first twelve questions incorrect.
based on this info, how many questions would you expect incorrect if the test totalled 180 questions?

Answer 1

i believe you can use ratio and proportion

your ratio of incorrect to total questions is 1 : 12

therefore apply this in proportion

1 : 12 = x : 180

got it?

Answer 2

are you there @Jordanas_Grace ??

Answer 3

yeah i think i got it

Answer 4

great!! ^_^

Answer 5

If 1 out of 12 is Incorrect, then

Total Incorrect = 180/12 = 15 is the answer...