Monday, 11 July 2016

Night Class: Reasoning Quiz


Directions (Q. 1 - 5): Read the following information carefully and answer the questions:

Alice, Bill, Cathy, Donald and Eve were in a room drawing pictures. There were 15 marker pens of different colours in the room. There were three red pens, three blue pens, three yellow pens, three green pens, and three orange pens. Each of these kids grabbed three pens of different colours. Alice did not grab the yellow pen. Bill did not grab the blue pen. Cathy did not grab the orange pen. Donald did not grab the green pen. Eve did not grab the red pen. Three of them grabbed both the red and the green pens. Eve had all the colour pens that Donald had. Alice did not grab the orange pen.


1. Who among the following grabbed the blue, yellow, and orange pens?
1) Alice 
2) Bill 
3) Eve 
4) Data inadequate 
5) None of these

2. Who among the following did not grab a green pen?
1) Donald and Eve 
2) Eve and Alice 
3) Alice and Bill 
4) Bill and Cathy 
5) Data inadequate

3. Which of the following shows the colours of two pens which were not grabbed by Bill?
1) Red and green 
2) Green and orange 
3) Green and blue 
4) Blue and red 
5) Blue and yellow

4. Cathy grabbed the –
1) red, blue and green pens 
2) red, green and orange pens 
3) red, yellow and green pens
4) blue, yellow and orange pens 
5) blue, green and orange pens

5. Identify the group who grabbed the red pens.
1) Alice, Bill and Cathy 
2) Bill, Cathy and Donald 
3) Cathy, Donald and Eve
4) Donald, Eve and Alice 
5) Eve, Alice and Bill

Directions (Q. 6-10): Study the following information carefully and answer the questions given below :

Eight persons, A, B, C, D, E, F, G and H, are sitting around a rectangular table in such a way that two persons sit on each of the four sides of the table facing the centre. Persons sitting on opposite sides are exactly opposite to each other. D faces North and sits exactly opposite H. E is on the immediate left of H. A and G sit on the same side. G is exactly opposite B, who is on the immediate right of C. A is next to the left of D.

6. Who is sitting opposite A?
1) G 
2) D 
3) E
4) A 
5) None of these

7. Who is next to E in clockwise direction?
1) G 
2) B 
3) F
4) A or F 
5) None of these

8. Which of the following pairs of persons has both the persons sitting on the same side with first person sitting to the right of second person?
1) DF 
2) CB 
3) FC
4) AG 
5) None of these

9. Who is sitting opposite E?
1) D 
2) A 
3) F
4) A or D 
5) None of these

10. Which of the following statements is definitely true?
1) A is facing North. 
2) E is sitting opposite F. 
3) F is to the left of G.
4) C is to the left of A. 
5) None of these







Answers:

(1 - 5): Create a table below with X representing pen not grabbed and Y representing pen grabbed, using the information that follows. Alice did not grab the yellow pen. Bill did not grab the blue pen. Cathy did not grab the orange pen. Donald did not grab the green pen. Eve did not grab the red pen.

Since Eve has all the colour pens that Donald has, we have

Since three of them grabbed both the red and the green pens, we have

And because all the boys have an orange pen, we have

Because each of these kids grabbed three pens of different colours, we add X on those rows with three pens (Y) already.

There are only 3 pens for each colour, therefore in yellow and orange columns we have

Since each kid grabbed 3 pens, it is now obvious that the blue pen was grabbed by Alice and not by Cathy. The table below show the colour marker pens each kid grabbed:

1. 5 
2. 1 
3. 5 
4. 3 
5. 1

6. 5
7. 2 
8. 4 
9. 3 


10. 2

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