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Question

Rekha married Shivram and had 4 sons. Versha married Ajay and had 4 sons. Both the couples had divorce and after that shivram married versha. while Ajay married Rekha. They too had 3 sons each from their wedlocks. How many selections of 8 children can be made from the 14 child so that each of them have an equal number of sons in the selections?

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Solution

Considering four groups RS,VA,AR,VS
Sons are 4,4,3,3 respectively
So, 2 from each will result in
No. of ways =4C2×4C2×3C2×3C2=324

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