Question

(d)* The bus went to the farm at a speed of 40 km per hour and took 3 hours. On the return trip, the
hours.
speed was 60 km per hour. Therefore, it took
S​

Answer 1

Answer:

Time taken by the bus at the return of the trip = 2 hours

Step-by-step explanation:

Given :

Speed of the bus when going to farm = 40 km/hr

Speed of the bus at the return of the trip = 60 km/hr

Time taken to reach at farm = 3 hours

To find :

Time taken by the bus at the return of the trip

Concept :

Formulas going to be used -:

$\sf{Distance=Speed\:\times\:Time}$

$\sf{Speed=\dfrac{Distance}{Time}}$

$\sf{Time=\dfrac{Distance}{Speed}}$

First find the distance of the trip . And after that find the time taken by bus at the return of the trip .

Solution :

Distance -:

$:\implies\sf{Distance=40km/hr\times3hr}$

$:\implies\sf{Distance=120km}$

Time -:

$:\implies\sf{Time=\dfrac{120km}{60km/hr}}$

$:\implies\sf{Time=2hr}$

So , the time taken by the bus at the return of the trip is 2 hours .