the ratio of ria's age to her brother's age is 4:9.ria is 10years younger than her brother.how old is ria. now?
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the ratio of ria's age to her brother's age is 4:9.ria is 10years younger than her brother.how old is ria. now?
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Verified answer
Ratio of Ria : Brother = 4 : 9
Define x:
Let x be the constant ratio:
Ria : Brother = 4x : 9x
Solve x:
Difference in their age in term on x = 9x - 4x = 5x
Difference in their age = 10 years
5x = 10
x = 2
Find Ria's age:
Ria = 4x = 4(2) = 8 years old
Answer: Ria is 8 years old
Verified answer
Let age of ria and her brother be 4x and 9x.Given that : Ria is 10 years younger than her brother.
Therefore,
9x-10 = 4x
5x = 10
x = 2 years.
Present age of ria = 4x = 8 years.