Question

If the average of five consecutive whole numbers is 18 what is the smallest number

Answer 1

Step-by-step explanation:

let the smallest number be x

five consecutive numbers are: x, x+1, x+2, x+3, x+4

average= sum of observation/no. of observation

average=18

(x)+(x+1)+(x+2)+(x+3)+(x+4)/5=18

5x+10/5=18

5(x+2)/5=18

x+2=18

x=18-2

x=16

smallest number is 16

and consecutive numbers are

16,17,18,19,20

Answer 2

Answer:

The average of any five consecutive oddnumbers is the third number of the sequence (in this case, c). You can prove this by setting a equal to c-4, b = c-2, d= c+2, and e= c+4. Add those four numbers together with c, and the sum of the five numbers is 5c.