Arithmetic Ability
 Probability

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Q.

In a race, the odd favour of cars P,Q,R,S are 1:3, 1:4, 1:5 and 1:6 respectively. Find the probability that one of them wins the race.

View Answer

Correct choice: A

Explanation:

P(P)=1/4,P(Q)=1/5,P(R)=1/6,P(S)=1/7 All the events are mutually exclusive hence, Required probability = P(P)+P(Q)+P(R)+P(S) 1/4+1/5+1/6+1/7 =319/420
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