Question

2) A journey by bus takes 45 minutes if its
speed is 60 km/hr . By how much should the
speed be increased if the journey is to be
completed in 2/3 of the time? .​

Answer 1

Answer:

990km

Step-by-step explanation:

Let the length of the journey be x km. Then,

45

x

−

60

x

=

2

11

⇒

180

4x−3x

=

2

11

⇒

180

x

=

2

11

⇒x=

2

11×180

=990km