Question

An aeroplane takes 4 hours to travel a distance of 2800km.Another aeroplane travels at a speed which is 100 kmph less than the first aeroplane. How long will it take to travel the same distance by the 2nd aeroplane​

Answer 1

Step-by-step explanation:

here in 1 aeroplane speed =distance/time=2800/4=700km/hr. so here 2 aeroplane speed is 100 km less I which means it is 600km. now same distance travelled by 2 aeroplane so dis=2800km so here time =dis/speed=2800/600 so time is 4.6 hours