working out voltage resistance and current in a DC circuit?

i have a circuit with 2 resistors in series (15kohms and the other is only 40ohms) then 3 resistors in parralell and they are (25kohms, 50kohms and 150kohms) the voltage is 24v and thats all the information that is given.
i have to work out the: total resistance of the circuit, the total current in the cirucit, the voltage across the 150kohms resistor and finally the current in the 150kohms resistor. i really need this as i am stuck with no one to help me