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Popular Word Problems >

boy is 6 years older than sister. in three years boy will be twice her age

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Solution

boyis6yearsolderthansister.inthreeyearsboywillbetwiceherage

Solution

Boy′sageis:9
Sister′sageis:3
Solution steps
Translate the problem into an equation:x+3=2(x−6+3)
Solve for x,x+3=2(x−6+3):x=9
Find age
Boy′sageis:9
Sister′sageis:3

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