The arithmetic mean of X,X+3,X+6,X+9 and X+12 is 10 than find X.
1
2
6
4
TELL me the correct answer quickly.....
Answers
Answered by
0
Answer:
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Answered by
0
Answer:
4
Step-by-step explanation:
x+(x+3)+(x+6)+(x+9)+(x+12)
=5x+30
mean=10
5x+30/5 =10
5x+30=50
5x=20
x=4
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