Question

the price of every piece of land increases by 9% every year if the present price is rupees 11881 what was the price 2 years ago

Answer 1

Let, the price of the land 2 years ago was ,'X'

∴ Present price = P × ( 1 + R/100 )²

                            = X × (1 + 9 / 100 )²

                           = X × { ( 100 + 9) /100)}²

                             = X × 109  × 109        

                                  100 × 100

By condition,

X × 109 × 109

100 × 100                = 11881

⇒ X = 11881 × 100 × 100

              109 ×109

⇒ X = 10000

The price of the land was ₹10000