Question

If Nirmal had Rs 810 left after spending 70% of his money. How much did he save in the beginning?

Answer 1

let the total money be X
nirmal had money after spending =RS. 810
According to question
X-X of 70percent =810
X-X*70/100=810
X-70X/100=810
30X/100=810
30X=81000
X=2700
He save in begnning =2700-810=RS.1890
Hope it's help

Answer 2

Answer:

Nirmal had spent 70%of his money and had ₹810

left with his which is equal to 30% of his money

Let he had ₹ x in the beginning

Then , 30% of ₹ x = 810

30 / 100 × x = 810

x = 810 × 100 / 30

x = ₹ 2700

Thus , Nirmal had ₹ 2700 in the beginning