If the average of 8 consecutive odd numbers is 86. Then find the greatest number in the series. *
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First find the odd numbers
let the first odd number be x
2nd odd no.=x+2
3rd odd=x+4
4th odd= x+6
...and so on
ATQ
x+x+2+x+4+x+6+x+8+x+10+x+12+x+14=86
=> 8x+56=86
=>8x=86-56
=>8x=30
=>x=30/8
=>x=3.75
so x=3.75
x+2=5.75
x+4=7.75
x+6= 9.75
x+8=11.75
x+10=13.75
x+12=15.75
x+14=17.75
so greatest number in the series is 17.75
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