Question

a car travels 195km in 3 hours

A) how long will he take to travel 520km?

B) how far will it travel in 7 hours with the same speed?

Answer 1

1st we find speed of car in 1 hour
so,
195/3
=65 km/hour

so 520/65
it take 8 hour

b. 65×7
=455 in 7 hour
hope it helps you

Rahul Aryan

Answer 2

D=195 Km
t=3 hrs
speed=D/t
S=195/3
s= 65 Km/hr
. New D=520km
s=d/t
t=d/s
t=520/65
t=8 hrs
. t=7hrs
d=s×t
d= 455 km