It's marriage

Discrete Mathematics Level pending

There are 5 eligible Punjabi grooms of which 3 know bengali and 5 eligible bengali grooms of which 2 know Punjabi.there are 5 eligible Punjabi brides and 5 eligible bengali brides. If an eligible groom wants to marry a girl who is of his community or knowing her language and brides have no choice then in how many ways we can make 10 happy couples??

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