Solving code coach.On input 3 my answer is 14.55 but actual answer is 14.45.

Question

You sell souvenir kaleidoscopes at a gift shop, and if a customer buys more than one, they get a 10% discount on all of them!
Given the total number of kaleidoscopes that a customer buys, let them know what their total will be. Tax is 7%. All of your kaleidoscopes cost the same amount, 5.00.

Task:
Take the number of kaleidoscopes that a customer buys and output their total cost including tax and any discounts.

Input Format:
An integer value that represents the number of kaleidoscopes that a customer orders.

Output Format:
A number that represents the total purchase price to two decimal places.

Sample Input:
4

Sample Output:
19.26
https://code.sololearn.com/clRALcKITDKU/?ref=app

Answer 1

Iqra Fatima (Student)

Most of your code is correct, aside from a few errors:
1. Use `double` instead of `float` for applications involving floating-point computations where memory isn't a concern. It literally has twice the precision of decimal digits, resulting in fewer rounding errors during final output.
2. `tax` should be calculated AFTER taking the discount into account. Try adding this in the first `if` statement, before calculating `TotalD`:

tax = (7.0/100.0)*(costPrice - discount);