# Section I - Multiple Choice (1 Viewer)

#### georgiee_

##### Member
yea i know that but i forgot the question what was it about
"A pair of player is to be selected from 6 people.
How many different pairs of players can be selected?"

(A) 6
(B) 12
(C) 15
(D) 30

#### georgiee_

##### Member
3 was definitely C. There were 6 people. e.g ABCDEF 2 must be picked

BC,BD,BE,BF
CD,CE,CF
DE,DF
EF

In total, 15
You're right . I'll add that to my growing tally of mistakes..

#### p3rf3ction

##### Member
its not 15, its 30. Its unordered, there is no need to divide it.

#### Study-Guy

##### Member
its not 15, its 30. Its unordered, there is no need to divide it.
3 was definitely C. There were 6 people. e.g ABCDEF 2 must be picked

BC,BD,BE,BF
CD,CE,CF
DE,DF
EF

In total, 15

They have to be in pairs, so AB is the same as BA. Therefore it cant be 30.

#### wavess

##### Member
I don't understand this question: can someone please explain

#### Study-Guy

##### Member
I don't understand this question: View attachment 26809 can someone please explain
The initial \$119.40 + \$402.70 is what she would get if she didnt earn more than \$236/fortnight. However, because she earns \$300, the total she gets from the gov, is \$119.40 + \$402.70 - (\$64x0.5\$) which equals D

#### wavess

##### Member
The initial \$119.40 + \$402.70 is what she would get if she didnt earn more than \$236/fortnight. However, because she earns \$300, the total she gets from the gov, is \$119.40 + \$402.70 - (\$64x0.5\$) which equals D
Ohhhh, that makes sense now, thank you.

#### Bnr

##### New Member
Yep, just got my questions out. It's B because the more time you spend training, the faster you will run the race.
Question 11 asks for negative correlation, not positive correlation.. wouldn't it be either c or d? I put d. Can someone confirm this?

#### poich

##### New Member
heres what i got. i know i got some wrong
1.d
2.d
3.c
4.b
5.a
6.c
7.d
8.a
9.b
10.c
11.b
12.b
13.c
14.a
15.d
16.a
17.a
18.d
19.c
20.c
21.a
22.b
23.c
24.b
25.b

#### Study-Guy

##### Member
I think this is 100% correct. Feel free to make changes.
1.D
2.D
3.C
4.A
5.A
6.C
7.D
8.A
9.C
10.C
11.B
12.B
13.C
14.A
15.D
16.A
17.A
18.D
19.B
20.C
21.A
22.B
23.D
24.B
25.B

Last edited:

9.d ?

20. d?

#### Study-Guy

##### Member
9 is d because interest rate has to be divided by 4 and period multiplied by 4

20 is d because its the bearing OF c FROM b. if anything, its between b and c

#### Bnr

##### New Member
9 is d because interest rate has to be divided by 4 and period multiplied by 4

20 is d because its the bearing OF c FROM b. if anything, its between b and c
I got C for that using the cosine rule to find that angle ABC = 19 degrees, then 180 - 19 = 161 degrees. It's not possible for it to be D because you start from north.

#### Study-Guy

##### Member
I got C for that using the cosine rule to find that angle ABC = 19 degrees, then 180 - 19 = 161 degrees. It's not possible for it to be D because you start from north.
Sorry, typo, yea, it is defs c

#### Jamezu

##### New Member
I think this is 100% correct. Feel free to make changes.
1.D
2.D
3.C
4.A
5.A
6.C
7.D
8.A
9.D
10.C
11.B
12.B
13.C
14.A
15.D
16.A
17.A
18.D
19.B
20.D
21.A
22.B
23.D
24.B
25.B
20 is not D its C. you must have done town b from town c whereas the question is town c from town b.
Everything else is what i got so im pretty sure you got 24/25

#### Study-Guy

##### Member
20 is not D its C. you must have done town b from town c whereas the question is town c from town b.
Everything else is what i got so im pretty sure you got 24/25
Yea, it was a typo. Sorry for the confusion.

Those arnt my answers, they are just the right ones. Ironically, i got 20 c but got to other wrong.

#### rooster1908

##### New Member
Both 9 and 20 are C. Otherwise the list that study-guy posted is correct.

For 9, D is incorrect because you have to change the interest rate to fit the compounding period (quarters), so it would be 1% for 8 periods which is 1.083

For 20, you use the cosine formula to find cos-B and then subsequently find angle B. angle B is 19, and you subtract that from 180 to give you the bearing, which gives you 161. D is definitely incorrect, as a bearing of 341 would be in the top left quadrant.

#### Study-Guy

##### Member
Both 9 and 20 are C. Otherwise the list that study-guy posted is correct.

For 9, D is incorrect because you have to change the interest rate to fit the compounding period (quarters), so it would be 1% for 8 periods which is 1.083

For 20, you use the cosine formula to find cos-B and then subsequently find angle B. angle B is 19, and you subtract that from 180 to give you the bearing, which gives you 161. D is definitely incorrect, as a bearing of 341 would be in the top left quadrant.
100% AGREE. Put d for both instead of c