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 Coding and Decoding Questions

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Q:

In a certain code, MONKEY is written as XDJMNL. How is TIGER written in that code ?

A) SHFDQ B) HFDSQ
C) RSAFD D) QDFHS
 
Answer & Explanation Answer: D) QDFHS

Explanation:

The letter of the word are written in a reverse order and then each letter is moved one step backward to obtain the code.

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Q:

If "#" means "subtraction", "&" means "division", "@" means "addition" and "%" means "multiplication", then

132 & 3 # 10 @ 20 % 2 = ?

A) 91 B) 74
C) 69 D) 76
 
Answer & Explanation Answer: B) 74

Explanation:
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Q:

In a certain code language, 'it is dark outside' is written as 'ha no ti ju','is it still raining' is written as 'pa ha da no', 'go and play outside' is written as 'su ju ye la'. How is 'dark' written in that code language?

A) ha B) ti
C) su D) ye
 
Answer & Explanation Answer: B) ti

Explanation:
The code for outside is -ju. The code for it/is -ha/no. Hence, the code for dark is 'ti'
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Q:

If UPTO is coded as PTUO, how is CANT coded?

 

A) NCTA B) ANCT
C) ANTC D) NTCA
 
Answer & Explanation Answer: B) ANCT

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Q:

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

16 x 8 - 4 ÷ 9 + 14 = 37

 

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

Explanation:
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Q:

If 70!10 = -7, 70!5 = -14 and 40!4 = -10, then find the value of 20!2 = ?

 

A) 30 B) -10
C) 12 D) -24
 
Answer & Explanation Answer: B) -10

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Q:

Replace # sign with the mathematical operators '+', '/','-'or'=' to get a balanced equation out of 186 # 31 # 36 # 30.

 

A) + / = B) - = +
C) - + / D) / = -
 
Answer & Explanation Answer: D) / = -

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Q:

Interchanging which two signs will make the following equation correct?

 

42 / 4 + 2 - 3 x 5 = 29

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

Explanation:
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