Average age of boys in a class is 16 years and average age of girls is

1.	Average age of boys in a class is 16 years and average age of girls is 15 years, what is the average age of all1. 15.52. 153. 164. Can't be computed
Answer» Correct Answer - Option 4 : Can't be computed Given: Average age of boys = 16 years Average age of girls = 15 years Formula used: If the values a, b, c, and d are the individual averages of each of the groups and n₁, n₂, n₃ and n₄are the numbers of observations then Weighted average = (an₁+ bn₂ + cn₃ + dn₄)/( n₁+ n₂ + n₃ + n₄) Calculation: As per the above formula, number of girls and boys are necessary to find the average As number of girls and number of boys is not given in the question ∴ Average age of all can’t be computed

Average age of boys in a class is 16 years and average age of girls is 15 years, what is the average age of all1. 15.52. 153. 164. Can't be computed

Answer» Correct Answer - Option 4 : Can't be computed

Given:

Average age of boys = 16 years

Average age of girls = 15 years

Formula used:

If the values a, b, c, and d are the individual averages of each of the groups and n₁, n₂, n₃ and n₄are the numbers of observations then

Weighted average = (an₁+ bn₂ + cn₃ + dn₄)/( n₁+ n₂ + n₃ + n₄)

Calculation:

As per the above formula, number of girls and boys are necessary to find the average

As number of girls and number of boys is not given in the question

∴ Average age of all can’t be computed

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