The average age of 25 men is 28 years. 5 new men of an average age of 25 years joined them. Find the average age of all the men together.
Answer & explanation
Correct answer: option 3
Total age of 25 men = 25 × 28 = 700 years
Total age of 5 new men = 5 × 25 = 125 years
Total age of 30 men = 700 + 125 = 825 years
Average of 30 men = \(\frac{825}{30}\) = 27.5 years