Int. J. of Aquatic Science2008-801912220210601Cost And Profit Analysis Of M/πΈπ/1 Queueing System By Triangular Fuzzy Numbers353360131864ENM.BhuvaneshwariPG and Research Department of Mathematics Holy Cross College ( Autonomous ), Trichirapalli β 620 002 Affliated to Bharathidasan universityW.RithaPG and Research Department of Mathematics Holy Cross College ( Autonomous ), Trichirapalli β 620 002 Affliated to Bharathidasan universityJournal Article20210615In this work, we have ventured to explore the cost and profit analysis of an M/π¬π/1 queueing model using triangular fuzzy numbers. We analyse the total expected cost of the system under the condition when the system is turned off and turned on and in second case,we discuss the total expected cost of the system with utilization of idle time and finally total optimal costs in both of cases have been obtained.http://www.journal-aquaticscience.com/article_131864_721a47d979993fbad110c2969c5a6a73.pdf