Coding And Decoding - Study Mode
[#26] If MADRAS can be written as ARSARS, how can ARKONAM be written in that code?
Correct Answer
(A) ROAAKNM
Explanation
Solution: The word is first written twice and the letters at the even positions in the word so obtained, form the code.
[#27] In a certain code, KAVERI is written as VAKIRE. How is MYSORE written in that code?
Correct Answer
EROSYM
Explanation
Solution: The letters in the first half and second half of the word are written in the reverse order to obtain the code. Thus, we have : MYSORE => MYS/ORE => SYM/ERO => SYMERO.
[#28] If in a certain code, CORPORATIONS is written as PROCTAROSNOI, then how is JUDICIAL written in that code?
Correct Answer
(A) IDUJLAIC
Explanation
Solution: The word is divided into groups of four letters each and then the letters in each group are written in a reverse order.
[#29] If CONTRIBUTE is written as ETBUIRNTOC, then which letter will be in the sixth place when counted from the left if POPULARISE is written in the same way?
Correct Answer
(D) L
Explanation
Solution: Divide the word into five sets of two letters each and label these sets from 1 to 5. Then the code contains these sets in the order 5, 4, 3, 2, 1 with the letters of sets 5, 3, 1 written in a reverse order. Thus, we have : PO PU LA RI SE => ES RI AL PU OP 1 2 3 4 5 => 5 4 3 2 1
[#30] In a certain code, COMPATIBLE is written as BQNPDDKAHS. How is STABILISED written in that code?
Correct Answer
(C) JCBUTCDRHK
Explanation
Solution: The letters in the first half and second half of the word are written in the reverse order and in the group of letters so obtained, each letter in the first half is moved one step forward while that in the second half is moved one step backward, to get the code. Thus, we have : STABILISED => STABI/LISED => IBATS/DESIL => JCBUT/CDRHK