Avg=60k
Sum=Avg*No. of obs=60k*5=300k
Now we know the least expensive house costs 55k so max value of a house can be 55k + value left after taking into account 55k (least value of all houses)
Max Value= 300000-(5*55000) + 55000=80000
Therefore, (A) 82000 being greater than 80000 cannot be a possible value of the house
Sum=Avg*No. of obs=60k*5=300k
Now we know the least expensive house costs 55k so max value of a house can be 55k + value left after taking into account 55k (least value of all houses)
Max Value= 300000-(5*55000) + 55000=80000
Therefore, (A) 82000 being greater than 80000 cannot be a possible value of the house