Find the distance covered by truck in 3 hours with speed of 60km/hr.find also the time taken by it,to cover the same distance moving with a speed of 80km/hr.​

Réponse :

-Since the truck covers 60 km in one hour, we just multiply that distance by 3 to find the answer : 60*3 = 180 km.

- The formula of speed is : speed = distance over time. s = d/t

with s = 80 km/h and d= 180km

so s = d/t

ts = d

t = d/s

t = 180/80

t =2,25

2 hours and 15 min

Bonjour !

Explications par étapes :

En 1 heure , il a parcouru 60 km

En 3 h , il aura parcouru :

60 x 3 = 180 km

À la vitesse de 80 km/h , les 180 km

seront parcourus en :

180/80 = 2,25 h ou 2h + (0,25×60)

Soit 2h et 15 minutes.

Bon courage.