Question 613399
susan is six years older than beth. in four years, susan will be twice as old as beth. how old is susan now?
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let x=Beth's present age
x+6=susan's present age
4 years later:
x+4=Beth's age
x+6+4=x+10=Susan's age
x+10=2(x+4)
x+10=2x+8
x=2
x+6=8
Ans:
Susan is 8 yrs old now