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Q:

Select from the five alternative diagrams, the one that best illustrates the relationship among the three classes  :  Truck, Ship, Goods

A) 1 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: B) 3

Explanation:

Truck and Ship are entirely different. But some Goods are carried by some Trucks and some Goods are carried by some Ships.

 

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Filed Under: Logical Venn Diagram

Q:

Select from four alternative diagrams, the one that best illustrates the relationship among the three classes  :  Pigeons, Birds, Dogs

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:

All Pigeons are Birds. But,Dogs are entairly different.

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Filed Under: Logical Venn Diagram

Q:

Which of the following Venn- diagram correctly illustrates the relation ship among the classes : Tennis fans, Cricket players, Students

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:

Some Students can be Cricket players. Some Cricket players can be Tennis fans. Some Students can be Tennis fans. So, the given items are partly related to each other.

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Filed Under: Logical Venn Diagram

Q:

Which of the following Venn- diagram correctly illustrates the relation ship among the classes  :  Carrot, Food, Vegetables

A) a B) b
C) c D) d
 
Answer & Explanation Answer: A) a

Explanation:

All Carrots are Vegetables. All Vegetables are Foods.

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Filed Under: Logical Venn Diagram

Q:

382  473  568  728  847  629

If 382 is written as 238, 473 as 347 and so on, then which of the following two numbers will have least difference between them?

A) 473 & 382 B) 629 & 728
C) 629 & 847 D) 728 & 847
 
Answer & Explanation Answer: D) 728 & 847

Explanation:

The given numbers are :

382  473  568  728  847  629

When changes are made as given in the question, numbers become as follows :

238  347  856  872  784  962

Again now, find out the difference between the numbers given in options as given below:

(1) 473 - 382  => 347 - 238 = 109

(2) 629 - 728  => 962 - 872 = 90

(3) 629 - 847  => 962 - 784 = 178

(4) 728 - 847  => 872 - 784 = 88

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Filed Under: Number, Ranking and Time Sequence Test

Q:

In the following set of numbers, if 1 is added to the last digit and then the orderr of digits is reversed, which number will be fourth if arranged in ascending order?

567    284    696    865    738

A) 567 B) 284
C) 865 D) 738
 
Answer & Explanation Answer: A) 567

Explanation:

Here the given numbers are 

567  284  696  865  738

When 1 is added to the last digit of each of the above numbers, it becomes as follows :

568  285  697  866  739

After reversing the order of digits , we get

865  582  796  668  937

Now , when the numbers are arranged in ascending order their order becomes as follows:

582  668  796  865  937

Hence , the fourth number is 865 (a number formed by 567). Therefore option(1) is correct answer.

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Filed Under: Number, Ranking and Time Sequence Test

Q:

The positions of the first and sixth digits in the number 5109238674 are interchanged. Similarly the positions of the second and the seventh digits are interchanged and so on . which of the following will be the third digit from the right end after the after the rearrangement?

A) 9 B) 0
C) 6 D) 3
 
Answer & Explanation Answer: B) 0

Explanation:

There are 10 digits. Now, third digit from the right means (10-3+1 = ) 8th digit from the left.  But, from the question , third  and eighth digits are interchanged. Hence, the required digit is the third digit of the given number, ie 0.

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Filed Under: Number, Ranking and Time Sequence Test

Q:

Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue?

A) 41 B) 40
C) 28 D) 27
 
Answer & Explanation Answer: C) 28

Explanation:

Three persons A, B, C can be arranged in a queue in six different ways, ie ABC, CBA, BAC, CAB, BCA, ACB. But since there are only 3 persons ahead of C, so C should be in front of the queue. Thus, there are only two possible arrangements, ie CBA and CAB.

 

We may consider the two cases as under:

Case I:  ←3C↔8B↔5A→21

 

Clearly, number of persons in the queue = (3+1+8+1+5+1+21=) 40

 

Case II:  ←3C A↔5B

 

Number of persons between A and C                  

 

= (8 - 6) = 2   

∵[C↔8B A→21B]

 

Clearly number of persons in the queue = (3+1+2+1+21) = 28

 

Now, 28 < 40. So, 28 is the minimum number of persons in the queue.                                                     

 

 

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Filed Under: Number, Ranking and Time Sequence Test
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