Coding and Decoding

Q 5: In a certain code STUDENT is written as TUTDNES. How will SOURCES be written in that code? A)SOURSEC B)SRUOCES C)SUORECE D)SUORECS Answer : Option D Explanation: There are 7 letters in the word. The middle letter (4th) has been left intact. The first and the last letters of the word have interchanged their position. Similarly, the second and the thisrd letters and he fifth and the sixth letters have interchanged their position. Q 6: If PRIVATE is coded as 1234567 and RISK is coded as 2398, how is RIVETS coded? A)232679 B)243769 C)234769 D)234976 Answer : Option C Explanation: PRIVATE --> 1234567 RISK --> 2398 RIVETS --> 2 3 4 7 6 9 Q 7: If in a certain language, COUNSEL is coded as BITIRAK, how is GUIDANCE written in that code ? A)FOHYZJBB B)FOIYZJBB C)FOIBJZYB D)EOHYZJBB Answer : Option A Explanation: The letters at odd positions are each moved one step backward, while the letters at even positions are respectively moved six, five, four, three, two,... steps backward to obtain the corresponding letters of the code. Q 8: In a certain code, a number 13479 is written as AQFJL and 5268 is written as DMPN. How is 396824 wriitten in that code ? A)QLPMNF B)QLPNDF C)QLPNMF D)QLPNKJ Answer : Option C Explanation: 1 3 4 7 9 5 2 6 8 A Q F J L D M P N so, 3 as Q, 9 as L, 6 as P, 8 as N, 2 as M and 4 as F. So, 396824 is coded as QLPNMF.

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