Question

The averge age of a group of 6 persons is 19 years. if the erage age of 5 of them is 20 then what is the age of the remaining person

Answer 1

The answer is given below :

The average age of a group of 6 persons is 19 years.

Then, the total age of the 6 persons

= 6 × 19 years

= 114 years.

The average age of 5 persons of them is 20 years.

Then, total age of the 4 persons

= 5 × 20 years

= 100 years.

Therefore, the age of the remaining person

= total age of 6 persons - total age of 5 persons

= 114 - 100 years

= 14 years

Thank you for your question.

Answer 2

So according to question
a+b+c+d+e+f/6=19
a+b+c+d+e+f=114

a+b+c+d+e/5=20
a+b+c+d+e=100

So age of remaing person will be 114-100=14 yrs


Hope it helps

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