A box contains 600 screws , one-tenth are rusted. One screw

is taken out at random from this box.Find the probability

Question

A box contains 600 screws , one-tenth are rusted. One screw   is taken out at random from this box.Find the probability that it   is good screw.​

Ella · Answer

Total screws in the box = 600

One tenth of 600 = 60

P(getting a good screw) = One tenth of 600 / Total screws in the box = 60/600 = 1/10

The probability of getting a good screw is 1/10 or 0.1 .

Reply

Raelynn · Answer

Given     Given Rusted screw =(1/10) of 600    Given Rusted screw =(1/10) of 600=(1/10)×600    Given Rusted screw =(1/10) of 600=(1/10)×600=60 seconds    Given Rusted screw =(1/10) of 600=(1/10)×600=60 secondsProbability of rusted screw=60/600=1/10    Given Rusted screw =(1/10) of 600=(1/10)×600=60 secondsProbability of rusted screw=60/600=1/10Probability ( of not rusted screw)=1− Probability ( of rusted screw)    Given Rusted screw =(1/10) of 600=(1/10)×600=60 secondsProbability of rusted screw=60/600=1/10Probability ( of not rusted screw)=1− Probability ( of rusted screw)=1−1/10    Given Rusted screw =(1/10) of 600=(1/10)×600=60 secondsProbability of rusted screw=60/600=1/10Probability ( of not rusted screw)=1− Probability ( of rusted screw)=1−1/10=(10−1)/10    Given Rusted screw =(1/10) of 600=(1/10)×600=60 secondsProbability of rusted screw=60/600=1/10Probability ( of not rusted screw)=1− Probability ( of rusted screw)=1−1/10=(10−1)/10=9/10    I   HOPE   THIS   HELPS

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A box contains 600 screws , one-tenth are rusted. One screw is taken out at random from this box.Find the probability