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The average of 7 numbers of 40. If 3 more numbers, with an average of 21, are added to these numbers, what will be the average of the combined 10 number?

The average of 7 numbers of 40. If 3 more numbers, with an average of 21, are added to these numbers, what will be the average of the combined 10 number? Correct Answer 34.3

The average of 7 numbers of 40. If 3 more numbers, with an average of 21, are added to these numbers, what will be the average of the combined 10 number? Total of 7 numbers = 7 x 40 = 280 Total of 3 numbers = 3 x 21 = 63 Total of (7 + 3 = 10) numbers  = 280 + 63 = 343 So, average = 343 / 10 = 34.3

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