A bag contains ₹$1$, $50\text{ paise}$, and $25\text{ paise}$ coins in the ratio $5 : 6 : 8$. If the total value of these coins is ₹$210$, find the number of $50\text{ paise}$ coins.
Options:
- A: $105$
- B: $126$
- C: $168$
- D: $210$
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