maths question

Let $X be the original saving.

1/10 X = 145

X = 145(10)

X = 1450

Therefore, the original saving is $1450.

He spent $20 on buying pens.

It is irrelevant...

I think the question of answer is 1450.

let y to be his saving,

y*1/10=145
y=1450

because of he spent $20 on buying pens ,
so the original saving is 1450+20
=1470

Tony took 1/10 of her saving to donate to the charity. He spent $20 on buying pens. The actual amount of donation is $145.What is the original saving?
The original saving is:145/(1/10)
=145X10
=$1450

1450??????

1450 or 1470

2010-04-07 19:55:39 補充：
is 1450