Aptitude - Arithmetical Ability

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7.

A train covers a distance of 12 km in 10 minutes. If it takes 6 seconds to pass a telegraph post, then the length of the train is?                          


A. 90 m B. 100 m
C. 120 m D. 140 m




8.

Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.?                          


A. 12 sec B. 24 sec
C. 48 sec D. 60 sec




9.

A speed of 14 metres per second is the same as?                          


A. 28 km.hr B. 46.6 km/hr
C. 50.4 km/hr D. 70 km/hr




10.

The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:?                          


A. 200 m B. 225 m
C. 245 m D. 250 m




11.

A train travelling at a speed of 75 mph enters a tunnel 3 1/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges ??                          


A. 2.5 min B. 3 min
C. 3.2 min D. 3.5 min




12.

A train 100 metres long takes 6 seconds to cross a man walking at 5 kmph in the direction opposite to that of the train. Find the speed of the train.?                          


A. 55 kmph B. 50 kmph
C. 45 kmph D. 40 kmph




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