Question

15. A car cam finish a certain journey in 10 hours at a speed of 48 kmph. In order to cover the same distance
in 8 hours, he speed of the car must be increased by:​

Answer 1

Answer: a car finish a certain journey of 10 km in = 48 km/h. ... 60-48=12 km/h.

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Answer 2

QuestioN :-

• A car can finish a certain journey in 10 hours at a speed of 48 kmph. In order to cover the same distance in 8 hours, he speed of the car must be increased by ?

AnsweR :-

A car finish a certain journey in 10 hours at speed of 48 kmph ,

• we know that Distance = Speed × Time

So the entire journey = 48 × 10

= 480 KM

If time is taken 8 hours , then increased speed =

$= \frac{480}{8} \\ \\ = 60 \: kmph$

So the increament in speed = 60 - 48 kmph

= 12kmph.

So the speed must be increased by 12kmph.

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