Chapter 1, Problem 1.13.2E

Explanation of Solution

We have,

The reduction in the total time is 20%

$\begin{array}{c}{\text{T}}_{\text{new}}\text{=}\text{250}\text{×}\text{0}\text{.8}\\ \text{=}\text{200}\text{seconds}\end{array}$

The total time can be calculated using the following formula

$\text{T}\text{=}{\text{T}}_{\text{fp}}\text{+}{\text{T}}_{\text{l/s}}\text{+}{\text{T}}_{\text{int}}\text{+}{\text{T}}_{\text{branch}}$

Substitute, “70” for “T_fp”, “85” for “T_l/s”, “x” for “T_int”, “40” for “T_branch” and “200” for “T”

$\begin{array}{l}\Rightarrow \text{200}\text{x}\end{array}$