Two motor cycles A & B are started from one point at 4 Kmph & 6 Kmph; After 45 min B starts returning, at what time they will meet ?	Choices.
A) 54 mins	B) 55 mins	C) 56 mins	D) 57 mins	E) 58 mins
Distance covered by A in 45 mins= 3 kms.   Distance covered by B in 45 mins= 4.5 kms.   Distance between and B after 45 mins= 1.5 kms.   Relative speed when B is returning = 4+6= 
<gadget id="calculator">4+6</gadget>
<output>10</output>
10 kmph   Distance between A and B is covered in   1.5/10= 
<gadget id="calculator">  1.5/10</gadget>
<output>0.15</output>
0.15 hrs= 9 mins   so they will meet again after 54 mins from starting time.   54 minsNSWER:54 mins
<result>A</result>
Two motor cycles A & B are started from one point at 4 Kmph & 6 Kmph; After 45 min B starts returning, at what time they will meet ?