
help hak plasea..?
a prgram that ask a user to enter the distance of a trip in kolimeter per liter estimates for the user's car ,and the price of a liter petrol.
calculate and display the number of liter of petrol needed and the estimated cost of the trip.
can some tell me what meaning of this question?;)

it means that you need to write a program that asks a user to enter the distance of a trip in kilometers, kilometers per liter estimates for the user's car, and the price of a liter petrol.
and then it needs to calculate and display the number of liters of petrol needed and the estimated cost of the trip.

can you wht the formula there?

this is an EXTREMELY simple task. you should try it first, and if you have problems, post your code, and ask for help.