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16 March, 04:33

Jeanine is twice as old as her brother Marc. if the sum of their age is 24. how old is Jeanine?

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  1. 16 March, 06:13
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    She is 16. If Jeanine is twice as old as Marc, then it's like she has an extra third of age. 24/3 = 8 8 = 1/3 of 24 Jeanine has 2/3 of age because she is twice as old as Marc. Marc has 1/3. Multiply the numerator by 8 and you have the age. I made it sound harder than it really is.
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