AFTER JENNY SPENT 1 / 3 OF HER SAVINGS ON A School bag, she had Rs 780 left .find jenny's SAVINGS AT FIRST.

2unit=780

1unit=780/2=390
3unit=390*3=1170

if she had s savings, then after spending 1/3 of it, she had 2/3 s left. So,

2/3 s = 780

1170

To find Jenny's initial savings, we need to set up an equation.

Let's say Jenny's initial savings is represented by 'x'.

According to the information provided, Jenny spent 1/3 of her savings on a school bag, which means she spent (1/3)*x.

After spending, she had Rs 780 left. So, we can express this as:

x - (1/3)*x = 780

To solve this equation, we'll combine like terms:

(2/3)*x = 780

Now, we can solve for x by multiplying both sides of the equation by (3/2):

(3/2) * (2/3) * x = (3/2) * 780

The (2/3) and (3/2) cancel each other out on the left side, and we're left with:

x = (3/2) * 780

Calculating the right side of the equation:

x = 1170

Therefore, Jenny's initial savings is Rs 1170.