The average age of 20 men is increased by 0.5 years when two of them whose age are 24 and 26 years replaced by two new men. The average age of the two men is:
Answer & explanation
Correct answer: option 2
Increase in total age of 20 men=20 × 0.5 = 10 years
Total age of 2 men replaced=24 + 26 = 50 years
The total age of the two new men = Increase in total age + age of the 2 men replaced
= 10 + 50 = 60 years
The average age of the two new men= \(\frac{60}{2}\)=30 years