120 out of 125 bolts produced are of an acceptable tolerance. What percentage of the bolts are not acceptable?
- 4%
- 5%
- 25%
Slick Rick 88 asking:
Why?
Community Comments (2)
C
Carlotambo66 Posts: 3 18.01.2021 / 10:15
if you make 125:100=120:x you'll have 120x100=12000, than 12000/125= 96, this number is the percentage of acceptable bolts, therefore the 4% remaining is the not acceptable part
M
marcotoia Posts: 2 30.01.2021 / 18:10
if you subtract 100 to 125 you have the not accettable bolts, they are 5. now, do a proportion 100:125=x:5 and x=100*5/125=4%
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