Question

Devendra, a computer accessories vendor gave a discount of $20$% on a pen-drive and his profit reduced from Rs. $200$ to Rs. $100$. What is Devendra's cost price?

• A. Rs. $300$
• B. Rs. $200$
• C. Rs. $400$
• D. None of these

Answer 1

The correct option is A Rs. $300$

$20$% of discount Reduced his Profit from Rs. $200$ to Rs. $100$
Let $SP=x$
$\frac{20}{100}x=100$
$x=500$
CP$=500-200=Rs.300$