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Popular Word Problems >

9 years from now Paul will be twice as old as Mary.The current sum of the ages of Paul and Mary is 36.How old is Mary right now?

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Solution

9yearsfromnowPaulwillbetwiceasoldasMary.ThecurrentsumoftheagesofPaulandMaryis36.HowoldisMaryrightnow?

Solution

Mary′sageis:9
Solution steps
Translate the problem into an equation:x+9=2(36−x+9)
Solve for x,x+9=2(36−x+9):x=27
Find Mary's age:9
Mary′sageis:9

Popular Examples

How many years will it take a 4200 investment to grow to 11800 if it is invested at 7.2%/a compounded semi monthly?The square of a number, x , is 16 less than eight times the number.Darnel puts 700.00 into an account to use for school expenses. The account earns 2% interest, compounded continuously. How much will be in the account after 7 years?Three less than the product of 9 and a number is 6Five more than a number times eight.
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