On Aoife’s 16th birthday, Buster was three times her age. On Aoife’s 21st birthday, how old was Buster?
Answers
Answer:53 years
Step-by-step explanation:
Aoife’s age = 16= x
Buster = 3x = 3 * 16
= 48
In r yrs, Aoife is 21
x + r = 21
16 + r =21
r = 21 - 16 = 5
In r yrs, Buster is:
48 + r
=>48 + 5
= 53 years
Step-by-step explanation:
On Aoife's 16 th birthday
Age of Aofie = x
Age of Buster = 3x
= x + 3x = 16
= 4x = 16
= x = 16 / 4
= x = 4
Therefore on Aoife's 16 birthday Buster was of 4 years .
On Aoife's 21st birthday
Age of Aoife = x
Age of Buster = 4
= x + 4 = 21
= x = 21 - 4
= x = 19
Hence,
It is proven that on Aoife's 16 th birthday Buster was of 4 years and on Aoife's 21 birthday Buster was of 19 years .
Ans : On Aoife's 21 birthday Buster was of 19 years .
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