Answer:
30000
Explanation:
here
gain =20%
also mp is set in such a way that we will gain 20% profit so,by the question
mp=cp+20%of cp
=x(let)+20%of x
= 120/100x
also,if 5% discount is allowed on mp then rs4200 will be profit.,then we have
sp=120/100 x - 5%of 120/100 x
=120/100 x - 600/10000 x
=12000-600/10000 x
=11400/10000 x
=114/100 x
again ,
profit =sp -cp
4200=114/100 x- x
4200= 14x/100 (after taking l.c.m)
x=420000/14 (after cross multiply)
x=rs 30,000
