In a certain code language, ‘HOST’ is coded as ‘9724’, ‘KINDO’ is coded as ‘45310’, ‘KNOWS’ is coded as ‘37654’. What is the code for ‘W’ in that code language?

a) 5
b) 6
c) 4
d) 7

Ans : b) 6

SSC Constable GD Exam Paper : Reasoning

Solution :

‘HOST’ is coded as ‘9724;,
‘KINDO’ is coded as ‘45310’,
‘KNOWS’ is coded as ‘37654’

KNO are common in ‘KINDO’ and ‘KNOWS’ =>453 are common in ‘45310’ and ‘37654’
Therefore, KNO code are 453

OS are common in HOST and KNOWS => 7and 4 are common in code
OS code is 74

Code of KNOS are 3754, Remaining W code is 6.

Short Trick : Direct

W is in ‘KNOWS’, but not in HOST and KINDO. Other letters are common in words. => In code of ‘KNOWS” only 6 is not common in any other code.
Hence, W code is 6