Question

the mean age of 6 person is 14.5 years the mean age of 4 of them is 13.25 years if the age of the person is 16 years find the age of the sixth person​

Answer 1

Answer:

18 years.

Step-by-step explanation:

Mean age of 6 persons =14.5

X/6=14.5

X=87

Mean age of 4 of the person's =13.25

y/4=13.25

y=53

x-y=87-53 =34 years

Here , the sum of ages of two persons is 34 years, If the first person's age is 16 then the sixth person's age will be 18, i.e.,34-16=18.

Answer 2

Answer:

18 years

Step-by-step explanation:

mean age of 6 person= 14.5

14.5 = x\6

x = 14.5 × 6

x = 87

mean of age of 4 of the person = 13.25

13.25 = y/4

y = 13.25 × 4

y = 53

x - y

= 87 - 53

34 years

if the first person age is 16 then the sixth person age = 34 - 16

18 years