A taxi driver had 40 $$l$$ of petrol in his car. <br>After driving for a day, 8 $$l$$ of petrol was left. <br> He used <input min="0" type="number" id ="imp2pg225q10_1" class="lineinput" placeholder="?" /> $$l$$ of petrol. He pumped another 35 $$l$$ of petrol before he returned home.<hr>Then, he had <input min="0" type="number" id ="imp2pg225q10_2" class="lineinput" placeholder="?" /> $$l$$ of petrol in the car.