Answer:
The lady had Rs. 500 before she made the pie.
Step-by-step explanation:
(First off, I'm not sure what Rs. means, so I'm going to assume it means rupees.)
Since this lady spent Rs. 150 on a dish and it was 30% of what she had before, we need to make an equation.
x(0.30) = 150,
where x is what the lady had before.
This is relatively easy, where all we have to do is divide each side by 0.30.
[tex]x(0.30) = 150[/tex]
[tex]\frac{x(0.30)}{0.30} = \frac{150}{0.30}[/tex]
[tex]x = 500[/tex]
This lady had Rs. 500 before she started making the dish.
To check, we'll go the easier route: fractions.
[tex]\frac{150}{x} = \frac{3}{10}[/tex]
Then, we need to divide 150 by 3 (which equals 50). Multiply 50 by 10, plug that in for x, and simplify.
[tex]\frac{150}{x} = \frac{150}{50*10} = \frac{150}{500} = \frac{3}{10}[/tex]
Done!
(Actually, I don't know if the fraction route was easier after all! By the way, she had Rs. 350 after she made the dish. I wonder what that dish was?)
