In a group there are 4 men. The average age of the four before 2 years is 55, after some days one man is added and his age is 45. What is the average age of all? A) 55 b) 54.5 c) 54.6 d) 54.7
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Answer:
The average age of all will be 52.6 years.
Step-by-step explanation:
Let x be the total sum of present ages of 4 men.
So, (x-2)/4 = 55
x-2 = 220
x = 218
Age of added man = 45 years
Therefore total sum of ages of 5 men = 218 + 45 = 263
Therefore, average of ages of 5 men = 263/5 = 52.6
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