the mean of 3 number is 25 and the mean of other 4 number is 48. find the mean of all the numbers
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Solution :-
Mean of 3 numbers = 25
The mean of 4 numbers = 48
According to the question,
Total of 3 numbers = 25 * 3 = 75
Total of 4 numbers = 48 * 4 = 192
Therefore,
Number of outcomes = 4 + 3 = 7
Total number of outcomes = 75 + 192 = 267
Mean = 267/7 = 38⅐
Therefore, the mean of all numbers is 38 ⅐.
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