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571 . A boy runs 200 metres in 24 seconds. What is his speed ?
A. 10 km/hr B. 20 km/hr
C. 30 km/hr D. 40 km/hr

572 . If the speed of a man is 45 km per hour, then what is the distance traveled by him in 30 seconds ?
A. 190 m B. 260 m
C. 330 m D. 375 m

573 . An escalator moves towards the top level at the rate of 11 ft.sec and its length is 140 feet. If a person walks on the moving escalator at the rate of 3 feet per second towards the top level, how much
A. 7 sec B. 10 sec
C. 13 sec D. 19 sec

574 . In a 1000 m race Usha beats Shiny by 50 m. In the same race, by what time margin Shiny beat Mercy who runs at 4 m/s ?
A. 50 sec B. 40 sec
C. 30 sec D. 20 sec

575 . A train 575 m long crosses a tunnel of length 325 in 90 sec. What is the speed of the train in kmph.
A. 18 kmph B. 36 kmph
C. 52 kmph D. 72 kmph




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