Question

Anna makes $100 a week. She spends $70 a week and saves the rest. She is saving to buy a $240 sound system. How long will it take her to save the money?

3 weeks


4 weeks


6 weeks


8 weeks

Answer 1

It will take her 8 weeks to save the money.

$100 - $70 = $30

$240 / $30 = 8

Answer 2

It is given in the question that, Anna makes $100 a week. She spends $70 a week and saves the rest.

So her weekly saving is

`100-70=$30`

She is saving to buy a $240 sound system.

Let the numbr of weeks is x

So we have

`image`

So the correct option is the last option .