In certain code, 253 means 'books are old', 546 means 'man is old' and 378 means 'Buy good books' what stands for 'are' in the code?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 2
A word that appears in two messages must have the digit common to both codes, so the shared words are decoded first.
‘books are old’ = 253 and ‘man is old’ = 546: the common word is ‘old’ and the common digit is 5, so old = 5
‘books are old’ = 253 and ‘Buy good books’ = 378: the common word is ‘books’ and the common digit is 3, so books = 3
In 253, the digit left for ‘are’ is 2