Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Statistics & ProbabilityMean, Median, and Mode
The mean weight of 100 students in a class is 46 kg. The mean weight of boys is 50 kg and of girls is 40 kg. Therefore, the number of boys is _?
- A.50
- B.55
- C.60Correct answer
- D.65
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Practice these MCQs in the appQuick fact: Using the allegation method, the number of boys is 60.