Delhi Police Constable Exam Model Paper 8

Short trick∶
Required value = 455 × 1.3/0.7 = Rs. 845
Detailed solution∶
Selling price (SP) of the article = Rs. 455
We know that,
⇒ SP of the article = CP of the article - Loss
⇒ 455 = CP of the article – (30% of CP of the article)
⇒ CP of the article = 455/0.7 = Rs. 650
We know that,
SP = CP + Profit
⇒ SP of the article if profit is 30% = 650 + (30% of 650)
⇒ SP of the article = 650 + 195 = Rs. 845
∴ SP of the article = Rs. 845