During the break of a football match, the coach will make 3 substitutions. If the team consists of 13 players among which there are 2 forwards, what is the probability that none of the forwards will be substituted?
Choose the correct choice from the following answers:
A) 21/55	B) 18/44	C) 42/143	D) 28/44	E) 36/55
Required probability = no. of favorable outcome/ total no. of outcomes   out of 13 players any 3 can be selected in 1342/1433 ways   after removing 2 forwards any 3 players can be selected from the remaining 9 players in 942/1433 ways   thus required probability = 942/1433/1342/1433 =42/143
<result>C</result>
During the break of a football match, the coach will make 3 substitutions. If the team consists of 13 players among which there are 2 forwards, what is the probability that none of the forwards will be substituted?