On Saturday Mdm Jennifer jogged at an average speed of 4 $$km/h$$ for $$\frac{3}{4} h$$.<hr>How long would she have taken if she had jogged at an average speed of 3 $$km//h$$ instead? <br> <input min="0" type="number" id ="imp6pg164q7_1" class="lineinput" placeholder="?" /> $$h$$.