Table 4 Fuzzy unit transportation cost

${\tilde{C}}_{111}$

(4, 5, 6, 11)

${\tilde{C}}_{211}$

(7, 10, 11, 17)

${\tilde{C}}_{311}$

(6, 8, 9, 10)

${\tilde{C}}_{121}$

(5, 6, 8, 12)

${\tilde{C}}_{221}$

(10, 11, 12, 14)

${\tilde{C}}_{321}$

(12, 14, 17, 18)

${\tilde{C}}_{131}$

(13, 14, 15, 20)

${\tilde{C}}_{231}$

(15, 17, 19, 21)

${\tilde{C}}_{331}$

(15, 17, 19, 21)

${\tilde{C}}_{112}$

(3, 5, 7, 9)

${\tilde{C}}_{212}$

(13, 15, 19, 20)

${\tilde{C}}_{312}$

(11, 13, 14, 22)

${\tilde{C}}_{122}$

(9, 10, 13, 14)

${\tilde{C}}_{222}$

(12, 17, 18, 20)

${\tilde{C}}_{322}$

(7, 8, 11, 12)

${\tilde{C}}_{132}$

(6, 9, 13, 18)

${\tilde{C}}_{232}$

(17, 18, 19, 21)

${\tilde{C}}_{332}$

(18, 20, 21, 22)