Consider a class of 5 girls and 7 boys. The number of different teams consisting of 2 girls and 3 boys that can be formed from this class, if there are two specific boys 
and 
, who refuse to be the members of the same team, is:
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Number of ways 
Total number of ways without restriction - When two specific boys are in team without any restriction, total number of ways of forming team is 
If two specific boys 
are in same team then total number of ways of forming team equals to 
ways total ways 
ways
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