Question

Page : 1.7
Solve this one :

Answer 1

Hi there !!

Given that ,

X travels from City A to B in Which

distance (s) = 540km
time(t) = 10 hrs

Speed of car X
speed= total distance/ total time
or
v = s/t

speed= 540km/10hrs

speed= 54km/hr

Also,

T travels from City B to C in which

distance (s) = 3200km
time(t) = 60 hrs

speed = distance/time
v = s/t

v = 3200km/60hrs

v = 53.333km/hr or 53.34km/hr

It can be seen that X has travelled with a speed of 54km/hr whereas Y has travelled with a speed of 53.34km/hr


Thus,
Car X has more speed

Answer 2

Speed =
$\frac{distance}{time}$

Speed of X =
$\frac{540}{10} = 54 \: km \: per \: hour$

Speed of Y =
$\frac{3200}{60} = \frac{160}{3} = 53 \frac{1}{3} \: km \: per \: hour$

Speed of Car X is more by 2/3 km per hour