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 Coding and Decoding Questions

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Q:

In a certain code, '247' means 'spread red carpet' ; '256' means 'dust one carpet' and '234' means 'one red carpet'. Which digit in that code means 'dust' ?

A) 2 B) 3
C) 5 D) 6
 
Answer & Explanation Answer: C) 5

Explanation:

In the first and second statements, the common code digit is '2' and the common word is 'carpet'.

 

So, '2' means 'carpet'.

In the second and third statements, the common code digit is '6' and the common word is 'one'.

 

So, '6' means 'one'.
Therefore, in the second statement, '5' means 'dust'.

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95 18046
Q:

In a certain code language 'how many goals scored' is written as '5397'; 'many more matches' is written as '982'; and 'he scored five' is written as '163'. How is 'goals' written in that code language ?

A) 5 B) 7
C) 3 D) Data is not sufficient
 
Answer & Explanation Answer: D) Data is not sufficient

Explanation:

From the given data,
how many goals scored = 5397....(1)
many more matches = 982.....(2)
he scored five = 163.....(3)
from (1)&(2), many = 9 ....(4)
from (1)&(3), scored = 3 ....(5)
Using (4)&(5)in(1), we get goals = 5 or 7.

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53 18034
Q:

If 20&60 = 8, 40&80 = 12 and 10&20 = 3, then find the value of 20&50 = ?

 

A) 18 B) 7
C) 10 D) 17
 
Answer & Explanation Answer: B) 7

Explanation:
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2 18016
Q:

If the mathematical operators, 'x' means '+', '/' means 'x', '+' means '-', and '-' means '/', then 22 + 36 - 12 x 6 / 4 = ?

 

A) -21 B) 43
C) 68 D) 53
 
Answer & Explanation Answer: B) 43

Explanation:

 

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8 17972
Q:

If S means '+', L means 'x', U means '/' and K means '-', then the value of

 

21 S 1 U 7 L 15 U 6 L 14 K 55

 

A) -50 B) 26
C) -29 D) 29
 
Answer & Explanation Answer: C) -29

Explanation:
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0 17953
Q:

If 18!10 = 4, 10!4 = 3 and 4!8 = -2, then find the value of 16!18 = ?

 

A) 2   B) -1  
C) -8   D)  9
 
Answer & Explanation Answer: B) -1  

Explanation:
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1 17918
Q:

If 9&4 = 50, 3&7 = -40 and 7&5 = 20, then find the value of 4&5 = ?

 

 

A) 80   B) -10  
C) 20   D)  -80
 
Answer & Explanation Answer: B) -10  

Explanation:
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6 17874
Q:

If signs - and x, and numbers 3 and 15 are interchanged, what is the value of 3+12/6-4x15 is

 

A) 20 B) 30
C) 40 D) 50
 
Answer & Explanation Answer: A) 20

Explanation:
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0 17762