The average age of 10 men is 42,if the average of 6 of them is 45,and the ages of three of them are 29,20 and 35. What is the age of the tenth man. Calculate the age of the tenth man in years
First, we need to find the total age of the 10 men:
Average age * number of men = total age
42 * 10 = 420
Next, we know the average age of 6 of the men is 45, so we can find their total age:
45 * 6 = 270
We also know the ages of 3 of the men, which add up to:
29 + 20 + 35 = 84
To find the age of the 10th man, we can subtract the total age of the 9 men we know about from the total age of all 10 men:
420 - 270 - 84 = 66
Therefore, the age of the tenth man is 66 years old.