Question

a book shop of a 10% discount on all books purchased from it it also gives one extra book on purchasing of 5 books if a man avail this offer what will be his percentage saving answer fast ​

Answer 1

Answer:

Let say Sale price of one Book = B

Then Sales price of 6 books = 6B

one extra book on the purchase of five books

Hence Price for 5 books has to be paid when bought 6 books

there is 10 % Discount on Each book

Hence Price of 1 Book = B-(10/100)B = 0.9B

Price of 5 Book = 5 * 0.9B = 4.5B

Saving = 6B - 4.5B = 1.5B

Saving % = (1.5B/6B) * 100 = 25 %

his percentage savings = 25 %

Answer 2

Answer:

Dilshan bought \[3\] books worth Rs. \[450\], Rs.\[520\] and Rs.\[250\] respectively.

A book store offers a \[10\% \] discount on all the books sold.

Additional discount of \[5\% \] on the total bill, if the total bill after the initial discount is more than or equal to Rs.\[1000\].

Let’s calculate the total price of the books Dilshan bought \[ = 450 + 520 + 250\]

Total amount would be Rs. \[1220\].

Discount offered for all books is \[10\% \].

Let’s apply this on the total amount,

Discount \[ = \dfrac{{10}}{{100}} \times 1220\]

The zeroes will get cancel then the result will be \[\dfrac{1}{1} \times 122\]

Any number multiplied by \[1\] will be the number itself.

Therefore, the \[10\% \] discount on the total amount is Rs. \[122\].

Subtracting the discount amount from total \[ = 1220 - 122\]

\[ = 1098\].

The total amount after initial discount \[10\% \] is Rs. \[1098\].

Now as per the additional discount of \[5\% \] on the total bill, the total bill after the initial discount is more than Rs.\[1000\], that is, Rs. \[1098\].

Now applying \[5\% \] discount,

Discount \[ = \dfrac{5}{{100}} \times 1098\]

By solving this, the discount amount \[ = 54.90\].

Subtracting the discount amount from total \[ = 1098 - 54.90\]

\[ = 1043.10\].

Total amount after the additional discount \[5\% \] is Rs. \[1043.10\].

Hence, total amount Dilshan was able to save

$ = $Total amount before discounts $ - $ Total amount after discount

\[ = {\text{List price}} - {\text{selling price}}\]

\[ = 1220 - 1043.10\]

\[ = 176.90\].

Therefore, the total amount Dilshan was able to save is Rs. \[176.90\].

So, the correct answer is “Rs = 176.90”.