Question

In a fixed time a car travel 210 kilometre at the speed of 60 kilometre hour full stop if the speed of car is increased by 20 kilometre kilometre h o u r how much more distance it will cover in the same time

Answer 1

HEY BUDDY...!!!!

HERE'S THE ANSWER..

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♠️ Given , A car travel 210 Km with the speed of 60 Km / s in certain time ( suppose t )

♠️ We know Speed is ratio of distance to the time taken , i.e

✔️ Speed = Distance / Time

=> Time ( t ) = Distance / Speed

=> Time ( t ) = 210 / 60

=> Time ( t ) = 21 / 6

=> [ Time ( t ) = 7 / 2 Hour ]


▶️ Now the speed of car is increased by 20 Km / h , that will be ( 60 km / h + 20 Km / h = 80 Km / h )

⏺️ Now car is traveling with speed of 80 Km / h and we have distance will is cover in 7 / 2 Hour


=> Distance = Speed × time

=> Distance = 80 × 7 \ 2

=> Distance = 40 × 7

=> [ Distance = 280 Km ]


♠️ Now take care of what we had asked , it is asking for how much more with will travel now , means we have to find difference b / t the distance .


=> Distance = 280 - 210

=> [ Distance = 70 Km ]


♠️ It will travel 70 Km more.



HOPE IT HELPS..

JAI HIND..

:)

Answer 2

time = distance / speed

time = 210 / 60

time = 7 / 2


speed = 60 + 20

speed = 80

distance = 80 × 7 / 2

Distance = 280


distance = 280 - 210

ans is 70 km