In a certain code 'DELHI' is coded as '19' and 'CHENNAI' is coded as '27'. How…
2023
In a certain code 'DELHI' is coded as '19' and 'CHENNAI' is coded as '27'. How will 'GUWAHATI' be coded in the above code?
Answer: B. 45 — ConceptIn alphabet–number coding, each letter can be replaced by its alphabet position: A = 1, B = 2, ..., Z = 26. When examples are given, apply the same…
- A.
30
- B.
45
- C.
75
- D.
25
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Show answer & explanation
Correct answer: B
Concept
In alphabet–number coding, each letter can be replaced by its alphabet position: A = 1, B = 2, ..., Z = 26.
When examples are given, apply the same numerical operation to each word; here the code is one-half of the sum of its letter positions.
Application
Write the positions: G = 7, U = 21, W = 23, A = 1, H = 8, A = 1, T = 20, I = 9.
Add them: 7 + 21 + 23 + 1 + 8 + 1 + 20 + 9 = 90.
Apply the inferred rule: 90 ÷ 2 = 45.
Cross-check
DELHI gives 4 + 5 + 12 + 8 + 9 = 38 and 38 ÷ 2 = 19; CHENNAI gives 54 and 54 ÷ 2 = 27. The same rule therefore gives 45 for GUWAHATI.
Result
GUWAHATI is coded as 45.