Question

In a certain code '256' means 'you are good'; '637' means 'we are bad' and '358' means 'good and bad'. Which of the following represents 'and' in that code ?

Answer 1

Solutions : Given :
'You are good'=$256$ ..(i)
'We are bad' = $637$ ...(ii)
and 'Good and bad' =$358$ ....(iii)
From equations (i) and (iii), 'good' is coded as '5'.
From equations (ii) and (iii), 'bad' is coded as '3'.
From eqation (iii), 'and' is coded as '8'.