Paper 1 · Mathematical Reasoning and Aptitude
In a certain code, 526 means sky is blue, 24 means blue colour, and 436 means colour is fun. Which digit means fun?
A5
B6
C3 ✓ Correct
D2
Correct answer: (C) 3 — The digit for fun is 3, so that is the answer.
Explanation
★The digit for fun is 3, so that is the answer.
★The codes 526 and 24 share the word blue, and their common digit is 2, so 2 means blue.
★The codes 526 and 436 share the word is, and their common digit is 6, so 6 means is.
★The codes 24 and 436 share the word colour, and their common digit is 4, so 4 means colour.
★In 436 the digits 4 and 6 mean colour and is, leaving 3 for fun.
★So the digit for fun is 3.
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