Final answer:
The distance a train will cover in five hours at a speed of 90 km/hr is calculated by multiplying the speed by the time, resulting in 450 km.
Step-by-step explanation:
To calculate the distance a train will cover in a given time, one can use the formula for distance, which states that distance is equal to speed multiplied by time. This particular question says that a train leaves New York and is traveling at a speed of 90 km/hr. To find the distance it will cover in five hours, we simply multiply the speed by the time:
Distance = Speed × Time
Distance = 90 km/hr × 5 hr
Distance = 450 km
Therefore, the correct answer is (C) 450 km. The train will cover 450 kilometers in five hours at the given speed, assuming a constant speed during the trip and no changes in direction or stops.