Multiple choice

Average age of 9 men is 45 years. If the age of one woman is included, then the average age becomes 44 years. What is the age of the woman?

  1. 44 years

  2. 30 years

  3. 40 years

  4. 35 years
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Average of 9 men = 45 years, so total age = 9×45 = 405 years. When woman is added, average of 10 people = 44 years, so total = 10×44 = 440 years. Therefore woman's age = 440-405 = 35 years. The average decreases because the woman's age is below the original average.

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