A train covers 520 km in 10 hours. How much distance will be covered by the train in 12 hours ?
624 km
Ratio of the distance travelled = Ratio of the time taken
Let the distance travelled in 12 hours be x .
Then , 520 : x = 10 : 12
520×12=x×10
x=12×52010
x=624 km
Hence the distance covered by the train in 12 hours is 624 km