Question

The mean age of 3 boys is 14 year 3 month. The girl's age is 15 years 3 months

Calculate the mean age of the 4 people

Answer 1

Answer:

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Answer 2

mean of 3 boys is 14years 3 months

x+y+z/3 =14 years 3 months

x+y+z = 3(14 years 3 months )

x+y+z =(42years 6 months )

girls age is 15 years 3 months

(x + y + z) + girls age/4 = 42 years 6 months + 15 years 3 months /4

57years 9 months / 4

57×12+9 /4

693/4

173.25

173 months 25 days