Kylie ran at speed of 8 $$km/h$$ for the first quarter of a race.<br>For the remaining part of the race, he increased his speed by 25%.<hr> If the remaining part of the race was 12 $$km$$, how long did he take to complete the whole race? <br> <input min="0" type="number" id ="imp6pg169q9b_1" class="lineinput" placeholder="?" /> $$h$$ <input min="0" type="number" id ="imp6pg169q9b_2" class="lineinput" placeholder="?" /> $$min$$