P travels for 6 hours at the rate of 5 km/ hour and for

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P travels for 6 hours at the rate of 5 km/ hour and for 3 hours at the rate of 6 km/ hour. The average speed of the journey in km/ hour is

1. 3 1
  5
2. 5 1
  3
3. 1 2
  9
4. 2 2
  5

Correct Option: B

Total distance
= 5 × 6 + 3 × 6
= 30 + 18 = 48 km
Total time = 9 hours

∴ Average speed =	48	=	16	= 5	1	kmph
	9		3		3