A train running at a speed of 80 km / he can cover a certain distance in 45 minutes how long will it take to cover the same distance if its speed is increased by 20 km / hr
(answer is 36min)
plz send me explaition
(answer is 36min)
plz send me explaition
Answers & Comments
Answer:
Step-by-step explanation:
Speed = 80 km/hr
Time = 45 minutes = 45/60 hr
Speed = Distance/time
Distance = Speed x time
= 80 x 45 /60
= 8 x 45/6
= 4 x 45/3
= 4 x 15
= 60 km
when speed 20 km/hr increase then
speed = 100km/hr
Distance = 60 km
Time = Speed /Distance
= 100/60
= 10/6
= 1.67 hr
= 100.2 mint.
Answer:
minutes how long will it take to cover the same distance if its speed is increased by 20 km / hr
Step-by-step explanation:
this and was wrong