Insert Four Arithmetic Means Between 8 And 18

Insert four arithmetic means between 8 and 18

Answer:

8,10,12,14,16,18

Step-by-step explanation:

8,_,_,_,_,18

n=6

a1=8

an=18

d=?

18=8+(6-1)d

18=5d+8

5d=10

d=2

8,10,12,14,16,18

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