Question

a sells car to b at 10% loss. if b sells it for rs 54000 and gains 20%. find the cp of car for a.

Answer 1

let the cp of the car be x
then 10%of x = x/10
sp=x-x/10
=9x/10 of a
20% of 54000
= 10800
so cp of b is 54000-10800
=43200
so ..9x/10=43200
x=432000/9
x=48000Rs

Answer 2

cp of b=20/100*54000=10800
cp of a=54000-10800=43200
cp of a=10/100*43200=4320
43200+4320=47520
ans.cp of car for a is 47520#