Paper 1 · Mathematical Reasoning and Aptitude
In a certain code, 123 means hot filtered coffee, 356 means very hot day, and 589 means day and night. Which digit means very?
A9
B5
C8
D6 ✓ Correct
Correct answer: (D) 6 — The digit for very is 6, so that is the answer.
Explanation
★The digit for very is 6, so that is the answer.
★The codes 123 and 356 share the word hot, and their common digit is 3, so 3 means hot.
★The codes 356 and 589 share the word day, and their common digit is 5, so 5 means day.
★So in 356 the digits 3 and 5 mean hot and day.
★That leaves the digit 6 in 356 for very.
★So the digit for very is 6.
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