Question

a bus covers a certain distance in 42 minutes if it runs at a speed of 50 km\hr what must be the speed of the bus in order to reduce the time of the jorney 30 minutes​

Answer 1

Answer:

65.625 km/hr

Step-by-step explanation:

Speed = Distance/Time

=> Distance = Speed * Time

=> Dividing by 60 to convert it to km/min: 50 * 42/ 60 = 32 * x/60

=> 50 * 42 = 32 * x

=> x = 50*42/32

=> x = 65.625 km/hr

Answer 2

$\bf \: QUESTION$

a bus covers a certain distance in 42 minutes if it runs at a speed of 50 km\hr what must be the speed of the bus in order to reduce the time of the jorney 30 minutes

$\bf \: ANSWER$

While moving with speed 50km/h

While moving with speed 50km/hDistance covered = speed x time

\bf \: D= 50*(42/60) \\

[] \bf \: D= 50*(42/60) \\ \bf \: D=35kms[/tex]

Speed of the bus to cover journey in 30 minutes

$</u></p><p><u>[</u><u> \bf \: Speed = distance / time \\ </u></p><p></p><p><u>[</u><u>] \bf \: Speed = distance / time \\ \bf \: Speed= 35/(30/60) \\ </u></p><p></p><p><u>[</u><u>] \bf \: Speed = distance / time \\ \bf \: Speed= 35/(30/60) \\ \bf \: Speed=70 km/h$

So to cover same distance in 30 minutes speed of bus should increase to 70 km/h