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Basic Mathematics QUESTION #4585
Question 1
If average of $6$ numbers is $15$ and one number is removed, average becomes $14$. What number was removed?
  • $20$✔️
  • $6$
  • $14$
  • $15$
Correct Answer Explanation
Original sum = $6 \times 15 = 90$. New sum = $5 \times 14 = 70$. Removed = $90 - 70 = 20$