A box contains 12 mangoes out of which 4 are spoilt. If four mangoes are chosen at random, find the probability that Not all the mangoes are spoiled. Choices
A) 1/495  B) 394/395  C) 494/495  D) 1/395  E) 4/395
Required probability = 1 – 1/495   = 494/495.   ANSWER:494/495
<result>C</result>
A box contains 12 mangoes out of which 4 are spoilt. If four mangoes are chosen at random, find the probability that Not all the mangoes are spoiled.