A and B are travelling from a distance X and Y. A starts at 12p.m at a speed of 6km/hr and B starts at 1.30p.m at a speed of 8km/hr. At what time will be the 3 km ahead of A.
a) 3p.m
b) 4.30p.m
c) 6p.m
d) 7.30p.m

• go by options...at 7.30 a will go 6*7.5=45km
  at 7.30 b will go 8*6=48km
  so b ewill be 3 km ahead of a
• 12 years agoHelpfull: Yes(8) No(0)
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• 12 years agoHelpfull: Yes(1) No(0)
• 7.30 pm is the answer
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• by options 7:30 p.m is sufficient.
  
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• By the time B starts, A will have travelled 1.5*6= 9kms. Let the time required be t. So, 8t - (6t+9) =3. So, t= 6 hrs. Hence the required clock time is 1.30pm+6hrs = 7.30 p.m.
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