Step 1: Understanding the Question:
This is a regulatory question asking for the rate at which a worker in an opencast mine earns paid leave.
Step 2: Detailed Explanation:
The provision for "Leave with wages" for mine workers in India is governed by Section 52 of the Mines Act, 1952.
The act specifies two different rates for earning leave, based on the location of work:
1. For a person employed
below ground: He shall be entitled to one day of leave for every
15 days of work performed.
2. For
any other person (which includes all persons working on the surface and in opencast mines): He shall be entitled to one day of leave for every
20 days of work performed.
Since the question specifies a person working in an opencast mine, the second rate applies.
Step 3: Final Answer:
A person working in an opencast mine earns leave at the rate of one day for every 20 days of work performed.
This corresponds to option (B).