Starting with the initial speed of 30 km/hr, the speed is increased by 4 km/hour every two hours. How many hours will it take to cover a distance of 288 km?
Answers:
A) 4
B) 6
C) 12
D) 8
E) None of these
Hour Speed (km/h) 8istance travelled (in km)   =2x30=60   =2x34=68   =2x38=76   =2x42=84   =2+2+2+2= 
<gadget id="calculator">2+2+2+2</gadget>
<output>8</output>
8=60+68+76+84= 
<gadget id="calculator">60+68+76+84</gadget>
<output>288</output>
288   Hence, the required time= 8 hours   Answer 8
<result>D</result>
Starting with the initial speed of 30 km/hr, the speed is increased by 4 km/hour every two hours. How many hours will it take to cover a distance of 288 km?