Advertisements
Advertisements
प्रश्न
A and B start from the same point and at the same time with speeds 15 km/h and 12 km/h respectively, find the distance between A and B after 6 hours if both move in the same direction.
उत्तर
A’s speed = 15 km/h
B’s speed = 12 km/h
Distance covered by A in 6 hours = 15 × 6 = 90 km
and Distance covered by B in 6 hours = 12 × 6 = 72 km
Distance between A and B when they move in the same direction = 90 – 72 = 18 km
APPEARS IN
संबंधित प्रश्न
A train 180 m long is running at a speed of 90 km/h. How long will it take to pass a railway signal?
A train whose length is 150 m, passes a telegraph pole in 10 sec. Find the speed of the train in km/h.
A train 120 m long passes a railway platform 160 m long in 14 sec. How long will it take to pass another platform which is 100 m long?
Mr. Amit can walk 8 km in 1 hour 20 minutes. How far does he go in:
(i) 10 minutes?
(ii) 30 seconds?
Which is a greater speed of 45 km/h or speed of 12.25 m/sec?
How much is the distance travelled by each in 2 seconds?
A and B start from the same place, in the same direction and at the same time with speeds 6 km/h and 2 m/sec respectively. After 5 hours who will be ahead and by how much?
Mohit covers a certain distance in 6 hrs by his scooter at a speed of 40 kmh-1. Find the time taken by Manjoor to cover the same distance by his car at the speed of 60 kmh-1.
Mohit covers a certain distance in 6 hrs by his scooter at a speed of 40 kmh-1. Find the speed of Joseph, if he takes 8 hrs to complete the same distance.
A boy swims 200 m in still water and then returns back to the point of start in a total of 10 minutes. Find the speed of his swim in
(i) ms−1
(ii) kmh−1.
A distance of 14.4 km is covered in 2 hours 40 minutes. Find the speed in ms−1. With this speed Sakshi goes to her school, 240 m away from her house, and then returns back. How much time, in all, will Sakshi take?
