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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

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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). $3\frac{1}{5}$
2). $5\frac{1}{3}$
3). $1\frac{2}{9}$
4). $2\frac{2}{5}$

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3 answers

1 vote
Answered by on | Votes 1 |
it from previous year ssc papers, $5\frac{1}{3}$ is the right answer

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1 vote
Answered by on | Votes 1 |
Total distance = 5 × 6 + 3 × 6 = 30 + 18 = 48 km Total time = 9 hours $ Required\ average\ speed=\frac{sum\ of\ total\ distance}{total\ time}$ =$\frac{48}{9}=\frac{16}{3}=5\frac{1}{3}$




1 vote
Answered by on | Votes 1 |

This answer is right

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

= $5\frac{1}{3}$

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