Using Line Balancing & Work$/$Operation Analysis

Based upon the following data, develop your recommended allocation of work and the number of worstations.

Work Unit Unit time $($min$)$ Immediate Predecessor

$00\mathrm{.}76---$

$11\mathrm{.}24---$

$20\mathrm{.}841$

$32\mathrm{.}070$

$41\mathrm{.}473$

$52\mathrm{.}44$

$60\mathrm{.}622,5$

$72\mathrm{.}162$

$84\mathrm{.}757$

$90\mathrm{.}656,8$

$101\mathrm{.}459$