Jill spent 40% of her money . If she had €120 left , how much had she at the start ?

€120 x .40 = 48

120 + 48 = 168

So if she spent 40% of her money, she had 60% of her money left, which is 120

so .6x = 120
x = 120/.6 = 200

check:
40% of 200 = 80 leaving her with 120

Marie you took 40% of what she had left.

To find out how much money Jill had at the start, we need to work backwards from the amount she had left after spending 40% of her money.

Let's use algebra to solve for the original amount, represented by "x".

We know that Jill's original amount minus 40% of that amount equals the amount she had left:

x - 0.4x = €120

To simplify the equation, we can combine like terms:

0.6x = €120

Now, we can solve for x by dividing both sides of the equation by 0.6:

x = €120 / 0.6

x = €200

Therefore, Jill originally had €200.