<p>) Using Johnson's rule for 2-machines scheduling, the jobsequence is as follows:</p><p><strong>Scheduled Order</strong></p><p><strong>Job</strong></p><p>1</p><p>▼</p><p>D</p><p>E</p><p>B</p><p>A</p><p>G</p><p>C</p><p>F</p><p>2</p><p>▼</p><p>F</p><p>D</p><p>E</p><p>C</p><p>G</p><p>B</p><p>A</p><p>3</p><p>▼</p><p>E</p><p>A</p><p>D</p><p>C</p><p>F</p><p>B</p><p>G</p><p>4</p><p>▼</p><p>B</p><p>A</p><p>G</p><p>D</p><p>E</p><p>C</p><p>F</p><p>5</p><p>▼</p><p>F</p><p>A</p><p>G</p><p>C</p><p>D</p><p>E</p><p>B</p><p>6</p><p>▼</p><p>A</p><p>G</p><p>E</p><p>C</p><p>D</p><p>F</p><p>B</p><p>7</p><p>▼</p><p>D</p><p>G</p><p>C</p><p>B</p><p>A</p><p>F</p><p>E</p><p>b) For the schedule developed using Johnson's rule, the totallength of time taken to complete seven jobs =</p><p>nothing</p><p>hours