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 Coding and Decoding Questions

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Q:

If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?

A) CPNCBX B) CPNCBZ
C) CPOCBZ D) CQOCBZ
 
Answer & Explanation Answer: B) CPNCBZ

Explanation:

Each letter in the word is moved one step forward to obtain the corresponding letter of the code.

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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 30708
Q:

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

5 + 8 ÷ 40 - 20 x 25 = 6

 

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

Explanation:
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2 30691
Q:

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

 

12 ÷ 4 - 15 x 10 + 2 = 8

 

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

Explanation:
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0 30441
Q:

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

 

14 ÷ 10 x 20 - 40 + 34 = 1

 

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

Explanation:
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2 30348
Q:

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

 

18 ÷ 2 - 25 x 9 + 6 = 38

 

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

Explanation:
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1 29735
Q:

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

18 x 12 - 6 ÷ 5 + 4 = 35

 

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

Explanation:
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2 29641
Q:

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "­" means "multiplied by", then

96 x 12 – 4 + 13 ÷ 21 = ?

 

A) 42 B) 40
C) 37 D) 333
 
Answer & Explanation Answer: B) 40

Explanation:
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