Material 3207

How many screws can we make from a rod whose weight is 3 3/4 kg if the weight of the screw is 3/16 kg and we count 3/20 of the material?

Correct answer:

n =  17

Step-by-step explanation:

m1=343=3+43=43 4+3=412+3=415=343=3.75 kg m2=163=0.1875 kg m3=203 m2=203 163=20 163 3=32090.0281 kg  m4=m2+m3=163+3209=32060+3209=32060+9=320690.2156 kg  n=m1/m4=3.75/0.2156=17



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