If the mean of numbers 28, x, 42, 78 and 104 is 62, what is the mean of 48, 62, 98, 124 and x?

babibell06cz

babibell06cz

Answered question

2022-08-09

If the mean of numbers 28, x, 42, 78 and 104 is 62, what is the mean of 48, 62, 98, 124 and x?

Answer & Explanation

raffatoaq

raffatoaq

Beginner2022-08-10Added 22 answers

Let's calculate the first mean:
28 + x + 42 + 78 + 104 5 = x + 252 5 = 62
From the last equality we can conclude that
x + 252 = 62 5 and finally x = 62 × 5 252 = 58
Now, we can simply evaluate the second mean:
48 + 62 + 98 + 124 + 58 5 = 390 5 = 78

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