Question

Mr. A sold his land to Mr. B at a profit of 10%. Mr. B. sold it to Mr. C at a gain of 5%. Mr. C paid #1240 more for the house than Mr. A paid. What did Mr. A paid ?

Answer 1

Answer:

from the given:

= ,

=

= ,

= =

if A = 12000,

=

=

statement I:

= = (#sufficient)

statement II:

2 variables with one equation