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.

In a race, the odd favour of cars P, Q, R, S are 1 : 3, 1 : 4, 1 : 5 a

1.	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.
A.	$\frac{{9}}{{17}}$$
B.	$\frac{{114}}{{121}}$$
C.	$\frac{{319}}{{420}}$$
D.	$\frac{{27}}{{111}}$$
Answer» D. $\frac{{27}}{{111}}$$

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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.

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