Question

average age of lars and hank is 42. The ratio of their age is 16:8. What is hank age?

Answer 1

let the common factor be x
ratio is 16:8=1:2
=1x+2x=42
3x=42
x=14
age of Lars and hank is 28 and 14
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Answer 2

Hank's age is 6 years

Step-by-step explanation:

Let the age of Lars be 20x and age of Hank be 2x  [Ratio is 20:2]

According to question

Average of both's ages = 33

∴ (20x + 2x)/2 = 33   [Average = Sum of observations/number of observations]

22x/2 = 33

11x = 33

x = 3

∴ Hank's age (2x) = 6 years

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