Manish has to travel from A to D changing buses at stops B and C enroute. The maximum waiting time at eithe...

A box contains 25 parts of which 10 are defective. Two parts are being drawn simultaneously in a random man...

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If P(A)=P(B)=P(AB), show that 

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0
210

From 6 positive and 8 negative numbers, 4 numbers are chosen at random (without replacement) and multiplied...