Sharpening your pencil is an operation that may be divided into eight small elemental motions. In MTM terms each element may be assigned a certain numbers of TMUs:
Reach 4 inches for the pencil .......... 6 TMU
Grasp the pencil ............... 2 TMU
Move the pencil 6 inches ............. 10 TMU
Position the pencil .............. 20 TMU
Insert the pencil into the sharpener ....... 4 TMU
Sharpen the pencil .............. 120 TMU
Disengage the pencil ............. 10 TMU
Move the pencil 6 inches ............ 10 TMU
What is the total normal time for sharpening one pencil? Convert your answer into minutes and seconds.