Coding and Decoding Questions

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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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

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Q:

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

 

16 ÷ 8 - 5 x 2 + 6 = 9

 

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

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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

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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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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 -

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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 -

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Q:

If 20 - 10 means 200, 8 / 4 means 12, 6x2 means 4, then

 

100 - 10 x 1000/ 1000 + 100 x 10 = ?

 

A) 20 B) 10
C) 0 D) 1
 
Answer & Explanation Answer: C) 0

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