Math, asked by dancekuchipudi, 10 months ago

in a pack of 400 screws there are 120 defect is Cruise find the probability that the selected screw is defective

Answers

Answered by dhriti1810

16

Answer:

Total number of screws which are non defective are 400−120=280

The probability of picking up a non defective screw is

280/400

lowest term= 7/10

hope it helps!!

Answered by Anonymous

12

total no. of screws=400

defective screws=120

total screws- defective screws=280

probability=120/280

Answer=3/7

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