4 years ago

The average of 4 numbers is 15 , the sum of 3 numbers is 14 what is the fourth number

Mathematics

2 answers:

Nostrana [21]4 years ago

7 0

Answer:

Step-by-step explanation:

(14+x)/4 = 15

14 + x = 60

x = 46

vladimir1956 [14]4 years ago

6 0

Answer:

Step-by-step explanation:

Let a to d be number 1 to 4 respectively.

15 = (a + b + c + d) / 4

(a + b + c + d) = 60 ------> total sum of the 4 numbers

Since the sum of 3 numbers (assuming a to c) is 14,

Fourth number (d) = 60 - 14

= 46

That's how I would do it, hope this helps :)

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