Question

A person having goods for Rs 400 sells half of it at a gain of 5% At what gain % must he sell the remainder so as to gain 20% on the whole?

• A. 35%
• B. 40%
• C. 30%
• D. 25%

Answer 1

The correct option is A 35%

To gain 20 % on whole he must sell all goods for Rs 400+20% of 400= Rs 480

As he get 5 % on half of goods

Selling price =200+5 % of 200=Rs 210

So required balance =480-210=270

He must gain Rs 70 on Rs 200

So % of gain on remaining goods=$\frac{70}{200}\times 100=35$%