Question

A scientific calculator is available at Universal shop in Hazratganz at $20\%$ discount and the same is available at only $15\%$ discount at Bhootnath market. Pooja has just sufficient amount of $Rs.800$ to purchase it at Universal shop, Hazratganz. What is the amount that Pooja has less than the required amount to purchase it at Bhootnath?

• A. $Rs.70$
• B. $Rs.50$
• C. $Rs.100$
• D. Data insufficient

Answer 1

Answer: (B)

$Rs.50$

Let cost of calculator is $Rs.100$
calculator is available at Universal shop in Hazratganj at $20\%$ discount then sell cost $=100-20=80RS$
Pooja paid $Rs.800$ at Universal shop
So actual cost of calculator $=\frac{800}{80}\times 100=1000$Rs
same as 15% discount at Bhootnath market
Then selling price of calculator at bhootnath market $=\frac{85}{100}\times 1000=850$Rs
amount that Pooja has less paid $=850-800=Rs.50$