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##### objective Ques (73 results)
71)

A boat moves 25 km upstream and 39 km downstream in 8 hours. It travels 35 km upstream and 52 km downstream in 11 hours. What is the speed of the stream if it travels at a uniform speed?

SSC CGL 2022
A)

6 km/h

B)

5 km/h

C)

4 km/h

D)

3 km/h

72)

A jeep travels to a place 300 km away at an average speed of 60 km/h and returns at a speed of 30 km/h. What is the average speed (in km/h) for the whole journey?

SSC CGL 2022
A)

40

B)

80

C)

75

D)

60

73)

Some students went on a field trip. At a speed of 6 km/h, they travelled by bikes for 2 hours; then at a speed of 2 km/h, they walked for another hour; then they took rest for an hour and had lunch for half an hour; then at a speed of 1 m/s, they walked for an hour to visit a garden; and finally at a speed 4 km/h, they returned home in 3 hours. Their average speed, in km/h, (rounded off to two places of decimal) is:

SSC CGL 2022
A)

0.28

B)

129.23

C)

3.48

D)

251.62

showing 71 - 73 results of 73 results

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