I'm getting (A)
median =130 K
mean = 150 K
There are 15 hours so price of 8th house must be 130 K
Now total sale price of 15 hours are 15 * 150 K = 2250 K
The max price of first 8 hours are 8*130K = 1040K
so the sum of last 7 hours = 1210 K
so if you select prices > 130 K but less than 165 K, one house must be > 165 K
rest of the two statements may or may not be true.
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Median and Mean problem
Source: Beat The GMAT — Data Sufficiency |
GMATPowerPrep Test1= 740
GMATPowerPrep Test2= 760
Kaplan Diagnostic Test= 700
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Kalplan Test2=670
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GMATPowerPrep Test2= 760
Kaplan Diagnostic Test= 700
Kaplan Test1=600
Kalplan Test2=670
Kalplan Test3=570
