As for a company, people cannot simply sum up international and domestic claim rate (in percentage – which results in answer A for many) but have to jointly calculate the overall rate as total number of claims/ total number of policies.

Though I thought this question is ambiguous and should not appear in a formal test. ]]>

Check the official explanation. ]]>

However, when we find out the domestic total we can add domestic and international totals (12800) and multiply by the rate 4.5 per 100 to get the total number of claims (576)

From here we can subtract the claims we know to be international (255) and divide the domestic claims (321) by the domestic total (4550) to get the domestic rate.

My question: is there a less math intensive way to do this?

Thanks!

Overall Claims Rate can be expressed as: (Total Claims / Total Sales)* 100

Accordingly it will be [(255+x)/(8250+y)]*100 = 4.5/100

Hence value of x is required from Statement 2 to solve further.

This is why A is a tricky choice but not necessarily the right answer. ]]>