easy math question..please help!?

Question

k so im terrible at math and cannot figure this out...if I take a multiple choice test thats out of 45 and I need a 67% to pass the test how many can I afford to get wrong?

Answer 1

as I get it, there only 45 mcqs rite? and to u need to get 67% of them correct so u can only have only:
[45 - (45*67/100)] wrong questions

if u can't simplyfy this:
= 15

u can only get 15 questions wrong! or ur failed!!
(but if i were u i'd try to aim low)

Answer 2

to pass you need to get 67% of 45
0.67 * 45 = 30

maximum allowed errors to pass
45 - 30 = 15

answer is 15

Answer 3

you can afford (100 -- 67 = 33)% of 45 wrong = 15 wrong.
you must get at least 30 out of 45.

Answer 4

so girl...i'll explain it breifly to you okie...so next time you''ll know what to do okie?...:))

first this is the percentage so you need first divide 67% by 100:

67/100 = 0.67

next youll multiply it by the whole number that represents 100% which in this case is 45. so:

45 x .067 = 30.15

so the number of correct answers you should get should be around 30 to 31 to pass the 65% mark since you dont have an item which is worth .15 pts. hehehehhe anyways..you could do this in reverse if you want to know what percentage you have for your correct answers..for example...you know that you answered 30 out of the 45 questions. all you need to do is divide the number of items to the number of correct answers mulitplied by 100...i hope i answered your question....please reply to me if im right ok?...:))

Answer 5

45 * .33 = 15

31/45 = 69
30/45 = 67
29/45 = 64

Answer 6

you may miss up to 15

Answer 7

Each question is worth 2.22%

Thirty Questions is a PASS

15 Can be WRONG