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Here is a kind of question that you can get on Verbal Reasoning. They might give you three groups of numbers like this: (4 [6] 2) (3 [7] 4) (5 [12] ?)

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Presentation on theme: "Here is a kind of question that you can get on Verbal Reasoning. They might give you three groups of numbers like this: (4 [6] 2) (3 [7] 4) (5 [12] ?)"— Presentation transcript:

1 Here is a kind of question that you can get on Verbal Reasoning. They might give you three groups of numbers like this: (4 [6] 2) (3 [7] 4) (5 [12] ?) And they will tell you that the three numbers in each group are related in the same way.

2 So what does that mean: the three numbers in each group are related in the same way?

3 So what does that mean: the three numbers in each group are related in the same way? Well, the best way to understand that is to see how they made the question…….

4 And this is how they made the question:

5 First, they use a and b and c And make up a sum Like (a + b = c) That is the simplest kind

6 They can use this sum a + b = c To generate lots of sums like this: (5+ [8] = 13) (4 + [3] = 7) (9 + [1] = 10) Check them and see

7 And they can use three sums like this to make a question (5+ [8] = 13) (4 + [3] = 7) (9 + [1] = ?) Check them and see

8 But they can make up lots of different a b c sums and this is what makes the questions hard. For example, can you see the a b c sum behind this question? (4 [6] 2) (3 [7] 4) (5 [12] ?)

9 For example, can you see the a b c sum behind this question? (4 [6] 2) (3 [7] 4) (5 [12] ?) The sum is a + c = b And the answer to (5 [12] ?) is (5 [12] 7)

10 All you have to do is to spot the way in which the numbers in each group are related. While you are learning you can use the idea of the a b c sum to help you. But you will soon forget the a b c sum and just think about the actual numbers in the question.

11 The first example is always simple. Then the a b c sum gets harder.

12 Here is one pattern: (24 [12] 6) (4 [2] 1) (32 [16] ?) Can you see the pattern?

13 The pattern is a divided by 2 b divided by 2 c Let’s check

14 Can you apply the same pattern to the other sums? a divided by 2 b divided by 2 c) (24 [12] 6) (4 [2] 1) (32 [16] ?)

15 It gets harder.

16 Another pattern they use is: (6 [18] 3) (4 [32] 8) (7 [?] 4) Can you see the pattern? In this one, it is easy if you know your times tables because 6x3 = 18 and 4x8 = 32 So the pattern is a x c = b (7 [28] 4) the answer is 28

17 Here is another pattern: (3 [2] 7) (9 [6] 21) (7 [3] ?) You might see a pattern/relationship between the numbers. Think, how can I get from 3 to 7 using 2? Think, how can I get from 9 to 21 using 6?

18 (3 [2] 7) (9 [6] 21) (7 [3] ?) Think, how can I get from 3 to 7 using 2? Think, how can I get from 9 to 21 using 6? Well I could do a + (b x 2) = c sum Then I would get (3 [2] 7) (9 [6] 21) (7 [3] 13)

19 This one really puzzled me: (4 [16] 8) (9 [27] 6) (4 [?] 7) And at first I saw this relationship: (4 into [16] is 4 and 4x2 is 8) and (9 into [27] is 3 and 3x2 is 6) But it won’t work for (4 [?] 7) Why?

20 (4 [16] 8) (9 [27] 6) (4 [?] 7) So I tried to make an a b c sum like this First I did a X c And got (4 [16] 8) 4 X 8 = 32 But how could I get from 32 to 16 (9 [27] 6) 9 X 6 = 54 But how could I get from 54 to 27

21 So the pattern with this one is: (a X c) = (b X 2)

22 1.(6 [48] 8) (3 [21] 7) (4 [ ?] 9) 2.( 7 [56] 4) (3 [12] 2) ( 5 [?] 3) 3.(24 [12] 6) (36 [18] 9) (28 [?] 7)

23 The best way of all to be able to do this type of question is to write your own question. Have a go at writing a few. And congratulations if you have got this far. You are a star!


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