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. a bus travel at 36 km/h and arrives in its destination half an hour late. If it travels at 42 km/h, it arrives at the same destination half an hour earlier. Find the journey distance.
 one year ago
 one year ago
. a bus travel at 36 km/h and arrives in its destination half an hour late. If it travels at 42 km/h, it arrives at the same destination half an hour earlier. Find the journey distance.
 one year ago
 one year ago

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ash2326Best ResponseYou've already chosen the best response.1
@mr.tobby Both the cases the distance is the same, Let time taken usually be t hours First case the bus arrives half an hour late. So time taken by it (t+0.5) hours Second case the bus arrives half an hour early. Time taken (t0.5) hours Distance covered in first case \[D=36(t+0.5)\] Distance covered in second case \[D=42(t0.5)\] Equate both these \[36(t+0.5)=42(t0.5)\] Can you find t from this ? @mr.tobby
 one year ago

ash2326Best ResponseYou've already chosen the best response.1
yes, now find distance using any of the two equations.
 one year ago

mr.tobbyBest ResponseYou've already chosen the best response.0
use D=42(t0.5) and D = 42(t+0.5)
 one year ago

ash2326Best ResponseYou've already chosen the best response.1
Check your second equation :)
 one year ago

ash2326Best ResponseYou've already chosen the best response.1
Use any of the two both will give you the same answer :)
 one year ago
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