Hulling percentage of rice is

Answer: Option C

Thank you for your observation — it's a valuable point and highlights an important distinction.

You're right in noting that under practical field conditions, the hulling percentage of rice may vary between 60% to 66%, especially when dealing with:

- Lower quality or immature paddy
- Poor post-harvest handling
- Suboptimal dehusking equipment

However, when we refer to the standard or expected hulling percentage in the context of agronomy or agricultural engineering, we are typically talking about ideal or optimal conditions — that is:

- Well-dried and properly matured paddy
- Clean grain without impurities
- Efficient hulling machinery

Under these ideal conditions, the hulling percentage — which is the ratio of brown rice (dehusked rice) to the original paddy weight — is accepted to be in the range of 67% to 70%.

This value is based on research data and is used as a benchmark in academic and competitive exams related to agriculture.

Why Option C (67% - 70%) is Correct:

Hulling percentage = (Weight of brown rice / Weight of paddy) × 100

A value of 67%–70% indicates high efficiency and good grain quality.

This range is also mentioned in many standard agronomy textbooks and government agricultural manuals.

It represents optimal post-harvest output, not average field-level performance.

So, while it's true that in less controlled conditions the percentage might be slightly lower (60%–66%), the correct answer in the academic and exam-oriented context remains Option C: 67%–70%, as it represents the theoretical or ideal hulling standard used for benchmarking.