Question

In a certain code, $256$ means 'red colour chalk', $589$ means 'green colour flower' and $245$ means 'white colour chalk'. What digit in that code does mean 'white'?

• A. $2$
• B. $4$
• C. $5$
• D. $9$

Answer 1

The correct option is B $4$

In the first, second and third statements, the common code digit is ${}^{\prime }{5}^{\prime }$ and the common word is 'colour'. So, ${}^{\prime }{5}^{\prime }$ means 'colour'.

In the first and third statements, the common code digit is ${}^{\prime }{2}^{\prime }$ and the common word is 'chalk'. So, ${}^{\prime }{2}^{\prime }$ means 'chalk'.

Thus, in the third statement ${}^{\prime }{4}^{\prime }$ means 'white'.
Hence, option $B$ is the correct answer.