His sister is thrice as old as he is. The sum of their ages is 24
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Answer:
he is 8 year old because his sister is 24 and 24÷3= 8
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Answer:
He is 6 years old and her sister is 18.
Explanation:
Let the age of the boy be x Then her sister will be 3x. sum of their ages will be x+3x=4x. which implies 24 . It means x=6 . and her sister will be 18.
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