Please help me debug

Question

Question
You are getting ready to paint a piece of art. The canvas and brushes that you want to use will cost 40.00. Each color of paint that you buy is an additional 5.00. Determine how much money you will need based on the number of colors that you want to buy if tax at this store is 10%.

Task
Given the total number of colors of paint that you need, calculate and output the total cost of your project rounded up to the nearest whole number.

Input Format
An integer that represents the number of colors that you want to purchase for your project.

Output Format
A number that represents the cost of your purchase rounded up to the nearest whole number.

Sample Input
10

Sample Output
99

My code :
c=int(input())
bill=(c*5)+40
tax=bill*(10/100)
t=bill+tax
print(int(t))

Can please help me debug

Answer 1

There is something written in the Output Format:
"...rounded up to the nearest whole number."

You will need a built-in module to help you.

Answer 2

Wong Hei Ming thank you

Answer 3

Rain thanks:)

Answer 4

int() rounds always down. Using the built-in round() function will round to the nearest integer if only the number is given. (To force rounding up you have to add 0,5 to the number.)

Answer 5

In the math module, ceil() rounds up.

https://docs.python.org/3/library/math.html?highlight=ceil#math.ceil

By the way, this,

tax=bill*(10/100)

can be simplified to this,

tax=bill/10

or this.

tax=bill*0.1