Wills Welded Widgets (WWW) makes its Q Model from components R, S, and T. Component R is made from 2 units of component X and 2 unit of component Y. Component T is made from 1 unit of component V and 1 units of component Z. Using the given information and the beginning inventories 80 units of component T and 290 units of component R, calculate the minimum replenishment time for the 80 Q Models.

Q

R S T

x Y V Z

Item Usage per Parent Lead Time (weeks)

Q 1 3

R 4 7

S 1 6

T 1 5

X 2 5

Y 2 6

V 1 6

Z 1 7

The cumulative lead time is ???? weeks.