13. Comment on the following statements:

(a) Operational Research is an art of winning war without actually fighting it.

(b) Operational Research is no more than a quantitative analysis of the problem.

(c) Operational Research is a war against ad hocism.

(

d) Operational Research is the art of fmding bad answers where worst exist.

(e) OperationalResearch advocates a systems-approach and is concerned with optimisation. It provides a quantitative analysis for decision-making.

(t) Operational Research replaces management-by-personality.