Question

Since I didn't have the required money to buy the book, I went to another book store. I found that the book was marked Rs 200. However, at the time of payment, the cashier told me that the book's price had gone down by 10%. How much money do I have left to buy the chocolate if I started out with Rs 210?

• A. Rs 20
• B. Rs 35
• C. Rs 30
• D. Rs50

Answer 1

The correct option is C Rs 30

The price of the book is Rs 200.

The price went down by 10%. Hence the decrease in price is $\frac{10}{100}\times 200=Rs20$

Now, the new price of the book is Rs 200 - Rs 20 - Rs 180.

Hence, the money I have left to buy the chocolate is Rs 210 - Rs 180 = Rs 30.