Coding and Decoding Questions

Q:

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "­" means "multiplied by", then 240 x 12 – 6 + 29 ÷ 42 = ?

A) 133 B) 147
C) 154 D) 176
 
Answer & Explanation Answer: A) 133

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Q:

If 8*2 = 3, 14*18 = -2 and 18*2 = 8, then find the value of 14*10 = ?

A) 2 B) -5
C) -2 D) 6
 
Answer & Explanation Answer: A) 2

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Q:

In a certain code language "TITANIC" is written as "7371835" and "SEMATIC" is written as "6241735". How will "MAINTAIN" be written in that code language?

A) 41387138 B) 43187138
C) 41837138 D) 41783138
 
Answer & Explanation Answer: A) 41387138

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Q:

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

 

X_ZX_YY_ZX_Z

 

A) XXYY B) YXZY
C) YYXY D) XXXY
 
Answer & Explanation Answer: B) YXZY

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Q:

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

8 x 5 x 0 = 805 , 7 x 4 x 6 = 764 , 6 x 8 x 9 = ?

A) 689 B) 698
C) 968 D) 986
 
Answer & Explanation Answer: B) 698

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Q:

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

50 + 3 ÷ 125 x 5 - 25 = ?

A) 31 B) 17
C) 150 D) 55
 
Answer & Explanation Answer: C) 150

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Q:

If CHANTED is coded as ZEXKQBA, then how will MAY be coded as?

A) XIG B) JXV
C) OBI D) XAV
 
Answer & Explanation Answer: B) JXV

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Q:

In a certain code language, "STATION" is written as "5313462" and "RED" is written as "789". How is "TRAIN" written in that code language?

A) 73241 B) 37421
C) 37142 D) 37412
 
Answer & Explanation Answer: C) 37142

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