Some articles were bought at the rate of Rs 8 per 5 articles, and sold at the rate of Rs 9 per 4 articles. Profit percent is:
Show answer & explanation
Correct answer: C
Explanation
Purchase rate = 5 items = ₹8
Cost price of 1 item = ₹8/5
Selling rate = 4 items = ₹9
Selling price of 1 item = ₹9/4
Profit percentage = [(9/4 − 8/5) / (8/5)] × 100
= [(45 − 32)/20] × (5/8) × 100
= (13/32) × 100
= 325/8