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Suppose the average weight of 9 persons is 50 kg. The average weight of the first 5 persons is 45 kg, whereas the average weight of the last 5 persons is 55 kg. Then the weight of the 5th person will be

[Paper II (CSAT) Analysis 2017]
A
B
C
D

EXPLANATION

Ans (c) Let weight of nth person be x(n). So, we have [ x(1) + x(2) .....
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