The 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?
Answer & explanation
Correct answer: option 4
Sum of ages of 9 man = 9 × 45 = 405 years
Sum of ages of 9 man and 1 woman = 10 × 44 = 440 years
Age of woman = 440 - 405 = 45 years