In a certain code, 267 means 'roses are red', 285 means 'red is good', and 649 means 'girls are singing'. Which digit is stand for 'roses' in that code?
4
6
7
2
9
Solution
In the first and second statement, the common digit is '2' and the common word is 'red'. Therefore 'red' is coded as '2' in the code. In first and third statements the common digit is '6' and common word is 'are'. Therefore, 'are' is coded as '6'. Hence, in the first statement '7' is the code for 'roses'.