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 Coding and Decoding Questions

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Q:

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

18 - 2 ÷ 20 + 5 x 16 = 69

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

Explanation:
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Q:

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

 

16 ÷ 4 - 50 x 4 + 18 = 26

 

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

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Q:

If train is called bus, bus is called tractor, tractor is called car, car is called scooter, scooter is called bicycle, bicycle is called moped, which is used to plough a field ?

A) Train B) Bus
C) Tractor D) Car
 
Answer & Explanation Answer: D) Car

Explanation:

A 'tractor' is used to plough a field.

But a 'tractor' is called 'car'.
So, a 'car' will be used to plough the field.

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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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Q:

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

 

6 x 18 + 40 ÷ 30 - 10 = 20

 

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

Explanation:
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6 26241
Q:

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

 

15 + 2 ÷ 20 x 10 - 6 = 13

 

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

Explanation:
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2 26161
Q:

If E = 5 and READ is coded as 7, then what is the code of 'DEAR' ?

A) 6 B) 7
C) 8 D) 9
 
Answer & Explanation Answer: B) 7

Explanation:

Here E = 5 = 5/1 = 5

=> READ = 18 + 5 + 1 + 4 = 28/4 = 7

=> DEAR = 4 + 5 + 1 + 18 = 28/4 = 7

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Q:

If "A" means "plus", "B" means "divide", "C" means "multiply" and "D" means "minus", then

162 B 27 C 5 A 8 D 35 = ?

A) 0 B) 3
C) 1 D) 2
 
Answer & Explanation Answer: B) 3

Explanation:
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