CGL 21 Tier 2 Maths


Question 1

A person sells an article for a loss of 18 percent. If he increases the selling price by ₹144 and decreases the cost price by 30 percent, then there is a profit of 20 percent. What is the original selling price?

एक व्यक्ति किसी वस्तु को 18 प्रतिशत की हानि पर बेचता है। यदि वह विक्रय मूल्य को ₹144 बढ़ा दे तथा क्रय मूल्य को 30 प्रतिशत घटा दे, तो 20 प्रतिशत का लाभ होता है। मूल विक्रय मूल्य कितना है?


Options

A

₹5068

₹5068

B

₹6036

₹6036

C

₹6124

₹6124

D

₹5904

₹5904


Solution:

Correct Answer:

D

₹5904

₹5904


Let's cost price = 100x

Selling price after 18% loss = 82x

Selling price after ₹144 increment = 82x + 144

New Cost price after 30% decrement = 70x

New selling price after 20% profit = 84x

We know that 84x = 82x + 144

2x = 144 or x = 72

Original selling price = 82x = 82 ×\times 72 = ₹5904

माना की क्रय मूल्य  = 100x

18% हानि के बाद विक्रय मूल्य  = 82x

₹144 की बढ़ोतरी के बाद विक्रय मूल्य  = 82x + 144

30% घटाने के बाद क्रय मूल्य  = 70x

20% लाभ के बाद विक्रय मूल्य  = 84x

हम जानते है की 84x = 82x + 144

2x = 144 or x = 72

अब मूल विक्रय मूल्य = 82x = 82 ×\times 72 = ₹5904

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