A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:  Choose the correct choice
A) 5.15 kmph	B) 4.14 kmph	C) 4.25 kmph	D) 4.4 kmph	E) 4.8 kmph
in 100 m race   A's speed is 5kmph so in m/s it is 5*5/18   time taken by A=D/S=100*18/25= 
<gadget id="calculator">100*18/25</gadget>
<output>72</output>
72 sec   Now   4.14 kmph would take   72+8= 
<gadget id="calculator">  72+8</gadget>
<output>80</output>
80 seconds   Speed of 4.14 kmph is=(100-8)=(92/80)*18/5= 
<gadget id="calculator">(92/80)*18/5</gadget>
<output>207/50 = around 4.14</output>
4.14kmph   ANSWER:4.14 kmph
<result>B</result>
A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is: