Math, asked by maazali123, 1 year ago

Mean of five obesrvations x,x+2,x+4,x+6 and x+8 is 13.Find the obesrvations.

Answers

Answered by deccanraj6
2
x + x+2 + x+4 + x+6 + x+8 = 13 * 5
5x+20 = 65
x= 65-20/5
x= 45/5
x=9

.: required observations are 9, 11, 13, 15,17 (9, 9+2, 9+4, 9+6, 9+8).

deccanraj6: welcome and ask me if u any query plz.
Answered by adukeisaac7
1
 x+x+2+x+4+x+6+x+8 = 13x5
5x+20=65
5x=65-20=45
x=45/5=9
hence the observations are 9,11,13,15,17
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