Person who dicided to go to weekend trip should not exceed 8 hrs driving in a day. Average speed of forward journey is 40 miles/hour . Due to traffic in sundays ,in return journey average speed is 30mph.How far he can select a picnic spot?

2 Answers on this Question

1. Let the journey distance be : x miles
   Now x/40+x/30=8 (time=distance/speed)
   Solving this for x we get. x=960/7
   therefore, x=137(approx)
   (137.14 exact)

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2. 120 miles

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