Disha drives a car at an average speed of 48 km/h and reach her destination in 6 hours. Himanshu covers that distance in 4 hours. If Disha increases her average speed by 8 km/h and Himanshu increases his average speed by 4 km/h, then what will be the difference in time taken by them to reach their destination?
Pick
A) 1 47/133 hr	B) 1 41/133 hr	C) 2 47/133 hr	D) 1 40/133 hr	E) 1 45/133 hr
48=d/6   therefore, distance(d)=288km   himanshu's speed=288/4= 
<gadget id="calculator">288/4</gadget>
<output>72</output>
72kmph   then, disha's speed=48+8= 
<gadget id="calculator">48+8</gadget>
<output>56</output>
56kmph   disha's time=288/56=5.143hr   then, himanshu's speed=72+4= 
<gadget id="calculator">72+4</gadget>
<output>76</output>
76kmph   himanshu's time=288/76=3.789hr   difference in time=5.143-3.789= 
<gadget id="calculator">5.143-3.789</gadget>
<output>1.354</output>
1.354hr=1 47/133hr   1 47/133 hrNSWER:1 47/133 hr
<result>A</result>
Disha drives a car at an average speed of 48 km/h and reach her destination in 6 hours. Himanshu covers that distance in 4 hours. If Disha increases her average speed by 8 km/h and Himanshu increases his average speed by 4 km/h, then what will be the difference in time taken by them to reach their destination?