In a certain code, ‘256’ means ‘red colour chalk’, ‘589’ means ‘green colour flower’ and ‘254’ means ‘white colour chalk’. The digit in the code that indicates ‘white’ is

The correct answer is 4.

To find the digit in the code that represents the word ‘white’, we can compare the given statements and isolate the digits corresponding to each word step-by-step.

Given codes:
1. ‘256’ means ‘red colour chalk’
2. ‘589’ means ‘green colour flower’
3. ‘254’ means ‘white colour chalk’

Step 1: Find the digit for ‘colour’
Compare statement 1 (‘256’ = ‘red colour chalk’) and statement 2 (‘589’ = ‘green colour flower’).
The common word between both statements is ‘colour’.
The common digit between ‘256’ and ‘589’ is 5.
Therefore, the digit for ‘colour’ is 5.

Step 2: Find the digit for ‘chalk’
Compare statement 1 (‘256’ = ‘red colour chalk’) and statement 3 (‘254’ = ‘white colour chalk’).
The common words between both statements are ‘colour’ and ‘chalk’, with the common digits being 2 and 5.
Since 5 represents ‘colour’, the remaining common digit between ‘256’ and ‘254’ is 2.
Therefore, the digit for ‘chalk’ is 2.

Step 3: Find the digit for ‘white’
Now look at statement 3 (‘254’ = ‘white colour chalk’):
- The digit 5 represents ‘colour’.
- The digit 2 represents ‘chalk’.
- The remaining digit in the code ‘254’ is 4, which must correspond to the remaining word ‘white’.

Thus, the digit that indicates ‘white’ is 4.