Mary, who is sixteen years old, is four times as old as her brother. how old will mary be when she is twice as old as her brother? explained

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03-08-2017
Mathematics

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Mary, who is sixteen years old, is four times as old as her brother. how old will mary be when she is twice as old as her brother? explained

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thowecomewithaburden thowecomewithaburden · Answer 1 · 2017-08-03T09:21:40+02:00

thowecomewithaburden thowecomewithaburden

03-08-2017

First, you find the brother's age by dividing mary's age by 4.
16 ÷ 4 = 4
Now that you have two ages, you can just make a list to find the answer.
16 and 4
18 and 6
20 and 8
22 and 10
24 and 12

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