Hi Nexi,
So they say this guy Ted, if that’s his real name, answered 41 questions correctly out of the 50 questions on the test.
let’s put those numbers aside:
correct: 41
total: 50
If I said Ted ate 5 cookies out of the 10 in the cookie jar, we’d know that’s 50%, why, because 5 is half of the 10
If I said Ted ate 3 of the cookies out of 9 in the jar, we’d know that this little thief just ate a third of our cookies!
If he ate 1 out of the 10 cookies, he would have a tenth of our entire cookie stock in his belly right now.
The reason why I make those example is because, in the first example, Ted ate half of out cookies, which is another way to say he ate 5/10 of out cookies 5/10 = 1/2 = 0.5 (that’s 50%)
when he ate a third (1/3) of our cookies it’s because he ate 3/9 of our cookies 3/9 = 1/3 = 0.3333333...(that’s 33.333%, or a third)
and when he started feeling guilty and only ate one of out of our ten, he ate 1/10, which is “one tenth” (=0.10, or 10%)
So what I’m showing is that to find a percentage, you divide the number which you’re trying to convert into a percentage: 5 cookies, or 41 questions answered correctly
by the total number of those same things:
10 cookies in the jar, and 50 questions on the test
Therefore, the percentage of questions that Ted got correctly is 41/50, which through the calculator equals 0.82, or 82%
