Correct option is A
Given:
Cost Price (CP) = ₹4800
Selling Price (SP) after reducing marked price by ₹640 gives a 15% gain
Required: Profit % if the article is sold at Marked Price (MP)
Formula Used:
Gain % = CPSP−CP×100
SP = CP×(1+100Gain %)
Solution:
SP = 4800×(1+10015)=4800×1.15=₹5520
So,
MP = SP + 640 = 5520 + 640 = ₹6160
Now, if he sells at MP, profit = 6160 - 4800 = ₹1360
Profit % = 48001360×100=4800136000=2831%