# f.1 maths

Last year,mr.Lee was three times as old as his daughter and 26 years older than her.How old is mr.Lee now?

solution:

let x be his daughter age in last year,

______-______=______

*please have 解釋!!

*the first step must be______-______=______

### 1 Answer

Rating

- 1 decade agoFavorite Answer
x= Mr.Lee's daughter's age last year

y= Mr.Lee's age last year

Last year,

3x=y.........eq1 ( 3 times as old as his daughter)

y=x+26......eq2 (26years older than her)

Sub eq1 into eq2,

3x=x+26

2x=26

x=13

Mr.Lee's age now

=3*13+1 ( 3 times as old as his daughter and add one more year for his age this year)

=39+1

=40

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