A box contains 250 bolts and 72 nuts. On checking the box, it was found
that half of the bolts and half of the nuts are rusted. If one item is chosen at
random, find the probability that it is rusted
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Answer:
1/2 or 0.5
Total items = 250 +72
= 322
Favourable outcome = 322/2 ( half of them are rusted) = 161
Probability= Favourable outcome/Total outcome
= 161/322
=1/2
=0.5
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