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Question

In Arun's opinion, his weight is greater than 6.5 kg but less than 72 kg.HisbrotherdoestnotagreewithArunandhethinksArunsweightisgreaterthan60\ kgbutlessthan70\ kg.Hismothersviewisthathisweightcannotbegreaterthan68\ kg$. If all are them are correct in their estimation, what is the average of different probable weights of Arun?

A
67 kg.
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B
68 kg.
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C
69 kg.
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D
Data inadequate
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E
None of these
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Solution

The correct option is A 67 kg.
Let Arun's weight by X kg.
According to Arun, 65<X<72
According to Arun's brother, 60<X<70.
According to Arun's mother, X<=68
The values satisfying all the above conditions are 66,67 and 68.
Required average =(66+67+683)=(2013)=67 kg.

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