In a certain code language, ‘van elf sand’ is coded as 'ld ii ne' and ‘elf poem desk’ is coded as ‘ir le ii’. How is ‘elf’ coded in the given language? (All codes are two-letter codes.)
ii
Compare the two statements to find the shared word and the shared code.
The first statement is 'van elf sand' coded as 'ld ii ne'.
The second statement is 'elf poem desk' coded as 'ir le ii'.
The only word common to both statements is 'elf'.
The only code common to both code sets is 'ii'.
Therefore the shared word must map to the shared code, so 'elf' is coded as 'ii'.
Hence, 'elf' is coded as ii.
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