Correct Answer - Option 3 : 9.09%
Given:
Total number of pens = 180
Rate of a pen = Rs. 180 per pen
Expenditure on Transportation and packaging = Rs. 2160
Marked price of each pen = Rs. 150
Discount = 4%
Formula used:
Profit% = (Profit/CP) × 100%
SP = MP × [(100 – Discount%)/100]
Calculation:
Cost of 180 pens = Rs. (180 × 120)
⇒ Rs. 21600
Total cost = Rs. (21600 + 2160)
⇒ Rs. 23,760
Marked price of 180 pens = Rs. (150 × 180)
⇒ Rs. 27000
SP = RS. 27000 × (96/100)
⇒ Rs. 25,920
Gain = Rs. (25,920 – 23,760)
⇒ Rs. 2160
Gain% = Rs. (2160/23,760) × 100%
⇒ 9.09%
∴ The overall gain percentage is 9.09%