Multiple choice

A shopkeeper sold an article at profit of 30%.If both the cost price and selling price is lowered by Rs. 100.Then the profit would be 4% more than before. Then find the cost price of the article? एक दुकानदार अपनी वस्तु को 30% के लाभ पर बेचता है। यदि क्रयमूल्य और विक्रयमूल्य दोनों ही 100 रु से कम कर दिए जाए तब लाभ 4% बड़ जाता है। तो वस्तु का क्रयमूल्य ज्ञात करो ?

  1. Rs.780

  2. Rs. 820.20

  3. Rs. 780.60

  4. Rs. 850

  5. None of these इनमे से कोई नहीं

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let CP = x. Original SP = 1.3x (30% profit). New CP = x - 100, new SP = 1.3x - 100. New profit = 34%, so (1.3x - 100) = 1.34(x - 100). Solving: 1.3x - 100 = 1.34x - 134, which gives 0.04x = 34, so x = 850. Verifying: Original: CP=850, SP=1105, profit=255 (30%). New: CP=750, SP=1005, profit=255 (34%).