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Question 14 Marks
The word 'FEATURE' has been coded in four different ways. Same codes have been for the word 'STRAIGHT' but not in the same order. Match identical parts.
FEATURESTRAIGHT
(a) GFBUVSF(i) TSARGITH
(b) EFZUTSDX             (ii) TVUENMOB
(c) EFTARUE(iii) TUSBJHIU
(d) GGDXZXL(iv) RUQBHHGU
Answer
(a) ↔ (iii), (b) ↔ (iv), (c) ↔ (i), (d) ↔ (ii)
Explanation :
(a) $\leftrightarrow$ (iii) : Each letter of the word has been coded one letter ahead as their position in the alphabet at the respective place. In the same way, STRAIGHT will be coded as TUSBJHIU.
(b) $\leftrightarrow$ (iv) : Letters at the odd place are one letter behind, and the letters at the even places are one letter ahead as their position in the alphabet at the respective places, Hence, word STRAIGHT will be coded as RVQBHHGU.
(c) $\leftrightarrow$ (i) : Letters at first and second, third and fourth, fifth and sixth and so on places are exchanged with each other. Hence, word STRAIGHT will be coded as TSARGITH.
(d) $\leftrightarrow$ (ii) : Letters for the basic word have been moved in forward direction in the coded word with a gap of $0,1,2,3,4$ and 5 letters as their position in the alphabet, Therefore, the word STRAIGHT will be coded as TVUENMOB.
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Match the following. - Applied Maths STD 11 Science Questions - Vidyadip