15
Q:

# In a certain code, '247' means 'spread red carpet' ; '256' means 'dust one carpet' and '234' means 'one red carpet'. Which digit in that code means 'dust' ?

 A) 2 B) 3 C) 5 D) 6

Explanation:

In the first and second statements, the common code digit is '2' and the common word is 'carpet'.

So, '2' means 'carpet'.

In the second and third statements, the common code digit is '6' and the common word is 'one'.

So, '6' means 'one'.
Therefore, in the second statement, '5' means 'dust'.

Q:

If in a language RAT is coded as "@\$&" and HEAD is coded as "%*\$#" then THREAD is coded as what ?

 A) #\$*@%& B) @#%\$*& C) &%@*\$# D) &*\$%#@

Explanation:

10 51
Q:

In certain language, CHAMPION is coded as HCMAIPNO, how is NEGATIVE coded in that code ?

 A) NEAGVEIT B) ENAGITEV C) MGAETVIE D) EGAITEVN

Explanation:

The letters of the word are reversed in order, taking two at a time, to obtain the code.

7 78
Q:

In certain code, TOGETHER is written as TCJRGEQR. In the same code JOINING will be written as?

 A) EPGPGQH B) QHPGPGE C) HQGPGPE D) EGPGPHQ

Explanation:

The letters at odd positions are each moved two steps backward and those at even positions are each moved two steps forward and the obtained code is reversed to get the corresponding letters of the code.

5 72
Q:

If Z= 2197 and R= 729. How would J be written in that code?

 A) 216 B) 124 C) 512 D) 125

Explanation:

$\inline Z \; code \Rightarrow 26 \Rightarrow \frac{26}{2}\Rightarrow (13)^{3}\Rightarrow 2197$

$\inline R\; code \Rightarrow 18 \Rightarrow \frac{18}{2}\Rightarrow (9)^{3}\Rightarrow 729$

$\inline Similarly\; \; J\; \; code\; \; \Rightarrow 10\Rightarrow \frac{10}{2}\Rightarrow (5)^{3}\Rightarrow 125$

42 1746
Q:

In a certain code language , 'PROBLEM' is written as MPERLOB. How will 'PROBLEM' is written as MPERLOB. How will 'NUMBERS' be written in that code?

 A) SNUREMB B) SNRUBME C) SNRUEMB D) SNRUMEB

Explanation:

$\inline \begin{matrix} 1\; 2\; 3\; 4\; 5\; 6\; 7 & &7\; 1\; 6\; 2\; 5\; 3\; 4\\ PROBLEM & \Rightarrow & MPERLOB \end{matrix}$

Similarly,

$\inline \begin{matrix} 1\; 2\; 3\; 4\; 5\; 6\; 7 & &7\; 1\; 6\; 2\; 5\; 3\; 4\\ NUMBERS & \Rightarrow & SNRUEMB \end{matrix}$