Question

The average of 4 numbers is 16 and the average of another 4 numbers is 20.find the average of the 8 numbers taken together

Answer 1

Answer:

18

Step-by-step explanation:

Average = sum / number of terms

First 4 numbers

Average = 16

Number of terms = 4

Sum / 4 = 16

= > Sum = 16 × 4

             = 64

Next 4 numbers

Average = 20

Number of terms = 4

Sum / 4 = 20

= > Sum = 20 × 4

              = 80

Total average

Total sum = 80 + 64

                 = 144

Number of terms = 8

Average = 144/8

               = 72/4

               = 36/2

               = 18

ANSWER:

18

Answer 2

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