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 Coding and Decoding Questions

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Q:

If 12@18 = -3, 18@6 = 6 and 16@8 = 4, then find the value of 6@10 = ?

 

A) -10 B) 8
C)  4 D)
 
Answer & Explanation Answer: D)

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31 20618
Q:

Answer the questions based on the below information.

 

If '+' is 'x', '-' is '+', 'x' is '/' and '/' is '-' then 9 / 5 + 4 - 3 x 2 = ?

 

 

A) 2 B) -9
C) -3 D) -9.5
 
Answer & Explanation Answer: D) -9.5

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Q:

If "A" means "subtraction", "B" means "division", "C" means "addition" and "D" means "multiplication", then

294 B 6 A 30 C 31 D 4 = ?

A) 16 B) 156
C) 143 D) 163
 
Answer & Explanation Answer: C) 143

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2 20449
Q:

If 18$6 = 6, 8$2 = 3 and 8$4 = 2, then find the value of 18$12 = ?

 

A) 3 B) -8
C) 4 D) 6
 
Answer & Explanation Answer: A) 3

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1 20226
Q:

If in a certan language FASHION is coded as FOIHSAN, how is PROBLEM codedin that code?

A) PELBORM B) PRBOELM
C) RPBOELM D) RPBOELM
 
Answer & Explanation Answer: A) PELBORM

Explanation:

The first and the last letters of the word remain as such and the remaining letters are written in a reverse order, to obtain the code.

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74 19793
Q:

If 5#5 = -25, -4#-3 = -12 and 3#-3 = 9, then find the value of 4#5 = ?

 

A) 49 B) -56
C) -17 D) -20
 
Answer & Explanation Answer: D) -20

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Q:

In a certain code language ‘ROUTINE’ is written as 'VMRGFLI'. How will 'CRUELTY' be written in that code language ?

A) UPVCZLR B) VPCVZRL
C) CVCPZRL D) VCPCZLR
 
Answer & Explanation Answer: B) VPCVZRL

Explanation:

ROUTINE IS 7 LETTER WORD.. (1st=R,2nd=O,3rd=U,4th=T,5th=I,6th=N,7th=E)
1st and 3rd letter interchanging. (UORTINE)
5th and 7th letter interchanging. (UORTENI)
1st letter shifting one after that (VORTENI)
2nd letter shifting two befor that (VMRTENI)
3rd letter remains same (VMRTENI)
4th letter
(total alphabets - current)+1
(26 - 20)+1= 7.(i.e) G (VMRGFNI)
5th letter shifting one after that (VMRGFNI)
6th letter shifting two befor that (VMRGFLI)
7th letter remains same (VMRGFLI
Like that,
CRUELTY IS 7 LETTER WORD.. (1st=C,2nd=R,3rd=U,4th=E,5th=L,6th=T,7th=Y)
1st and 3rd letter interchanging. (URCELTY)
5th and 7th letter interchanging. (URCEYTL)
1st letter shifting one after that (VRCEYTL)
2nd letter shifting two befor that (VPCEYTL)
3rd letter remains same (VPCEYTL)
4th letter
(total alphabets - current)+1
(26 - 5)+1= 22.(i.e) V (VPCVYTL)
5th letter shifting one after that (VPCVZTL)
6th letter shifting two befor that (VPCVZRL)
7th letter remains same (VPCVZRL).

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115 19353
Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

20 ÷ 14 + 5 x 20 - 2 = 56

A) + and x B) ÷ and -
C) + and ÷ D) - and +
 
Answer & Explanation Answer: B) ÷ and -

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