Question

A train can cover a distance of 648 km in 9 hours. What distance in 12 hours at the same speed?​

Answer 1

Step-by-step explanation:

Given that

a train can cover distance of 648km in 9hrs

To find

Distance in 12hrs at same speed

Solution

$distance \: cover \: per \: km = \frac{648}{9}$

$= 72km \: per \: hour$

hence for 12hour

$distance \: cover \: in \: 12 \: hour = 12 \times 72 \\ = 864km$

Distance cover in 12hrs is 864km.

Answer 2

Given -

A train can cover a distance of 648 km in 9 hours.

To find -

The distance traveled by train in 12 hours.

Solution -

A train can cover a distance of 648 km = 9 hours.

Distance cover by train in one hour =

$\frac{A \: train \: can \: cover \: a \: distance \: in \: 9 \: hours.}{9 \: hours}$

Distance cover by train in one hour =

$\frac{648}{9}$

Distance cover by train in one hour =

$72 \: km$

Distance cover by train in 12 hour = Distance cover by train in one hour × 12

Distance cover by train in 12 hour =

$72 \times 12$

Distance cover by train in 12 hour =

$864 \: km$

Hence,

The distance traveled by train in 12 hours is 864 km.