In a certain code “SOUTH” is coded as “95208”, “OLD” is coded as “524”, then how is the word “LAST” is coded ?Options311022190None12119203112
Question
In a certain code “SOUTH” is coded as “95208”, “OLD” is coded as “524”, then how is the word “LAST” is coded ?
Options: 3110 2219 0 None 1211 920 3112
Solution
The word "LAST" is coded as "1902".
Here's how we get to that:
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Each letter in the word is replaced by a number. The number corresponds to the position of the letter in the alphabet.
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For the word "SOUTH", S is the 19th letter of the alphabet, O is the 15th, U is the 21st, T is the 20th, and H is the 8th. So, "SOUTH" is coded as "19201521208".
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Similarly, for the word "OLD", O is the 15th letter of the alphabet, L is the 12th, and D is the 4th. So, "OLD" is coded as "151204".
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Using the same logic, the word "LAST" would be coded as "1902". L is the 12th letter of the alphabet, A is the 1st, S is the 19th, and T is the 20th. So, "LAST" is coded as "1211920".
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However, in the given code, the 0s are removed. So, "LAST" is coded as "1902".
Therefore, the correct option is 1902.
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