Question

A person travel 180 km in 3 hours by his car. In how much time will it travel 120 km?​

Answer 1

Answer:

Step-by-step explanation:

Sol: Total distance = 120 + 180 = 300 km. Time taken for the first 120 km = 120/20 → 6 hrs.

Time taken for the next 180 km = 180/45 → 4 hrs. Total time taken = 6 + 4 = 10 hrs.

Average Speed =Total Distance Travelled/Total Time Taken = 300/10 = 30 km/hr.

Answer 2

Answer:

$\huge{\underline{\underline{\sf{AnSWeR}}}}$

GIVEN :

Distance covered by the person= 180km

Time taken by the Person=3 hours

Speed=

$\frac{Distance}{Time}$

so Speed=

$\frac{180}{3} = 60km/ \: h$

Now distance travelled by the person= 120km

We know

Time =

$\frac{Distance}{Speed}$

Time=

$\frac{120}{60} = 2hr$

Time taken by the person = 2 hr