00:01
Okay, we have here three subjects, english, history and language, e h and l.
00:06
And we are told a survey is 100 students.
00:08
So we know that u here is 100 people in total.
00:14
And it says english is 47 take english.
00:19
So here you put 47 in brackets by the e, because that number is these four areas together combined.
00:27
Makes 47 and then 49 take history so again that goes here in brackets because these four areas together make up 49 and then we are told that 37 take languages same reasoning this goes here in brackets now always start in the middle if you can well in fact always start in the middle so look down, 7 take all 3.
00:59
So 7 will go here in the middle.
01:03
Then it says here 14 take english and history.
01:09
Now if you put 14 here like that, that's a very common mistake and it's wrong.
01:14
14 is the entire area there, the overlap between e and h.
01:19
That, this area here is 14.
01:22
So what you do is not 14 there, but 7.
01:29
That makes 14 in total.
01:32
Then english and language is 18.
01:36
So here then must be this whole area here is 18.
01:43
We have 7 already, so 11 more are required to make up 18 for english and language.
01:54
Oh, so wrong one, sorry.
01:56
Where are we here? 14 take english and history.
02:03
15 take english and language.
02:08
I'm reading this.
02:10
15 take english and language.
02:15
So it must be 8 here to make up 15 in total.
02:18
8 plus 7 is 15.
02:21
And 18 take history and language.
02:25
So 11 goes here.
02:26
I was right before.
02:27
It's okay.
02:28
So that's those three numbers done.
02:32
And now i can find the rest because for english we have so far a total of 777 and 8.
02:39
That's 14 .22.
02:43
So 22 from 47 will be 25 to make up that.
02:49
That's right.
02:50
History i want 49.
02:52
So far i have 47, 7 .7 .11...