1. The problem asks why the premium for Class 3 occupation is higher than for Class 1 and Class 2 in personal accident insurance. 2. The premium depends on the risk level associated with the occupation. Class 3 involves manual work and use of tools or machinery, which increases the likelihood of accidents. 3. Higher risk means higher probability of claims, so insurers charge higher premiums to cover potential losses. 4. Class 1 and 2 involve lower risk activities (office work or semi-hazardous non-manual work), so their premiums are lower. 5. In summary, the premium difference reflects the risk exposure: $$\text{Premium} \propto \text{Risk Level}$$ 6. Therefore, Class 3's higher premium is justified by the increased accident risk in manual and machinery-related jobs.