Question

both should realise they need each other which principal of management is this​

Answer 1

This principle is an extension of principle of harmony. Competition should be replaced by cooperation. Management and workers both should realise that they need each other. For this management should entertain the constructive suggestions of employees and at the same time, workers should also cooperate with management.

Answer 2

Secret h!!

Sssssssssshhhhhhhhhhhhhhh..