the cost of a shirt is Rs.540. if the shopkeeper sells it at a profit of 20%, find its selling price. pls help. Share with your friends Share 1 Varun.Rawat answered this CP = Rs. 540Profit % = 20 %SP = ?profit % = profitCP×100% ⇒20 = profit540×100⇒profit = Rs. 108⇒SP - CP = 108⇒SP = 108 + 540 = Rs. 648 2 View Full Answer Snigdha answered this sp=cp*100+p%/100sp=540*100+20/100=540*120/100=648rsso he should sell at 648rshope it helped u pls thumbs up!!!!!!!!! 0 Vatsalya answered this sp=selling pricecp=cost pricesp=cp*100+20/100=540*100+20/100=540*120/100=540*6/5=648Rs=Rs 648 2