Question

by selling an article for rs 5400,a man incurs a loss of 10%.he sells some others article at a gain of 15% if on the whole ,he neither gains nor losses, find the cost price of second article

Answer 1

c.p. of 1st article= 5400/(100-10)×100= ₹6000
so for 2nd article
suppose c.p. is x
s.p.= x+(6000-5400)=x+600
and profit is 15%= 600 (for no profit and no loss)
100% (c.p.) of 2nd article= 600×100/15= ₹4000