Here are the answers and walkthrough to Stupid Test Level 20 Question 14 – Records at an insurance company showed that the First 30 customers made an average of five claims each through their lifetime. After the records of a Further 75 customers had been assessed, the average claims rose to six per customer. What was the average number of claims by the last 75 customers only?
- 6.4 claims.6+(30/75)=6.4
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