Question

p sells an item to q at 15% profit, q sell it to r at 20% profit and r sell it to s at 120 rs profit.diffrence between cost price of q and s is 350.how much did r pay to q?​

Answer 1

let value is x
q get at 1.15x
r get at 1.2x1.15x
s get at 1.2x1.15x+120
now 1.2x1.15+120-(1.15x)=350
now find x and put in 1.2x1.15x