Physics problem Thermodynamic cycle

[Questions999]

Homework Statement

A mole of ideal gas with a temperature T1=300K is expanded isobarically until its volume is tripled .Then the gas gets colder isochorically until we reach the temperature we had in the beginning 300 K.Find the work of the gas.
Hint : We have a thermodynamic cycle .

Homework Equations

A=p* DeltaV=quantity of moles * R* deltaT

The Attempt at a Solution

Find A=P *3V1-V1=p*2v1=2*P*V1=2*quantity of moles*R*300...Is this correct? Show me ur solution

 

[I like Serena]

Welcome to PF, Elaia06!

Yep. That looks correct to me.

Btw, your problem states that the quantity of moles is one.
And do you know a value for R?