Paper 1 · Mathematical Reasoning and Aptitude
In a certain code, 743 means mangoes are good, 657 means eat good food, and 934 means mangoes are ripe. Which digit means ripe?
A9 ✓ Correct
B3
C4
D7
Correct answer: (A) 9 — The digit for ripe is 9, so that is the answer.
Explanation
★The digit for ripe is 9, so that is the answer.
★The codes 743 and 934 share the words mangoes are, and their common digits are 4 and 3.
★The codes 743 and 657 share the word good, and their common digit is 7, so 7 means good.
★So in 743 the digits 4 and 3 stand for mangoes and are.
★In 934 the digits 3 and 4 are shared, leaving 9 for ripe.
★So the digit for ripe is 9.
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