Question

In a certain code, '256' means red colour chalk' ; '589' means green colour flower' and '245' means white colour chalk'. Which digit in that code means white' ?

• A. $2$
• B. $4$
• C. $5$
• D. cannot be determined.

Answer 1

Answer: (B)

$4$

Given, 'Red colour chalk' $\equiv$ '256'...(i)
'Green colour flower' $\equiv$ '589'...(ii)
and 'White colour chalk' $\equiv$ '245'...(iii)
From equations (i) and (ii), 'Colour' is coded as '5'.
From equations (i) and (iii), 'Chalk' is coded as '2'.
From equation (iii), 'White' is coded as '4'.