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Question

If the average of 120 observations is 27, the sum of all observations is .


A
324
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B
3240
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C
4.44
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D
44.44
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Solution

The correct option is B 3240
Average = Sum of observationsTotal no. of observations 

From the given information we can write,

27 = Sum of observations120

Sum of observations = 27×120 = 3240

Mathematics

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