Each R requires 2 of component S and 1 of part T. The lead time for assembly of R is 3 days. The lead time for the manufacture of S is 5 days. The lead time for the manufacture of T is 10 days. The cumulative lead time for R is __________ days.
A) 6
B) 9
C) 13
D) 17
E) cannot be determined

Question

Quizplus · Accepted Answer

To make one R, we need 2S and 1T. 
Lead time for manufacturing S is 5 days and for T it is 10 days. 
Therefore, the cumulative lead time for one R will be:
= (2*5) + 10 + 3 
= 13 days. 
Hence the answer is option C.

Each R Requires 2 of Component S and 1 of Part