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The average of $8$ readings is $24.3$, out of which the average of first two is $18.5$ and that of next three is $21.2$. If the sixth reading is $3$ less than seventh and $8$ less than eighth, what is the sixth reading ?

  1. $24.8$
  2. $26.5$
  3. $27.6$
  4. $29.4$
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Now, if 6th reading is x,

the x+x+3+x+8= 93.8

after solving,

x=27.6

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