Xavier starts from P towards Q at a speed of 40 kmph and after every 12 mins increases his speed by 20 kmph. If the distance between P and Q is 56 km, then how much time does he take to cover the distance?	Choose the correct answer:	A) 40	B) 48	C) 44	D) 36	E) 30
first 12min = 40 *12/60= 
<gadget id="calculator">40 *12/60</gadget>
<output>8</output>
8 km   2nd 12min= 60*12/60= 
<gadget id="calculator">60*12/60</gadget>
<output>12</output>
12 km   3rd 12 min= 80*12/60= 
<gadget id="calculator">80*12/60</gadget>
<output>16</output>
16 km   4th 12 min= 100 *12/60= 
<gadget id="calculator">100 *12/60</gadget>
<output>20</output>
20 KM   TOTAL time 12.4=48 min   48
<result>B</result>
Xavier starts from P towards Q at a speed of 40 kmph and after every 12 mins increases his speed by 20 kmph. If the distance between P and Q is 56 km, then how much time does he take to cover the distance?